Updated on 2024/04/02

写真a

 
ONARI Seiichiro
 
Organization
Graduate School of Science Associate professor
Graduate School
Graduate School of Science
Undergraduate School
School of Science Department of Physics
Title
Associate professor
Contact information
メールアドレス

Degree 1

  1. Ph. D. ( 2005.3   The University of Tokyo ) 

Research Interests 1

  1. Superconductivity and transport phenomena in strongly correlated electron system

Research Areas 1

  1. Others / Others  / Physical Properties II

Current Research Project and SDGs 1

  1. Superconductivity in iron pnictides

Research History 4

  1. Nagoya University   Associate professor

    2018.4

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    Country:Japan

  2. Okayama University   Associate professor

    2014.7 - 2018.3

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    Country:Japan

  3. Nagoya University   Dept. of Applied Physics   Assistant Professor

    2006.8 - 2014.6

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    Country:Japan

  4. Nagoya University   21st Century COE "Frontiers of Computational Science"   Researcher

    2005.4 - 2006.8

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    Country:Japan

Education 3

  1. The University of Tokyo   Graduate School, Division of Science   Department of Physics

    2002.4 - 2005.3

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    Country: Japan

  2. The University of Tokyo   Graduate School, Division of Science   Department of Physics

    2000.4 - 2002.3

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    Country: Japan

  3. The University of Tokyo   Faculty of Science   Department of Physics

    1996.4 - 2000.3

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    Country: Japan

Professional Memberships 2

  1. 日本物理学会

  2. American Physical Society

Committee Memberships 1

  1. 日本物理学会 領域8    運営委員代表  

    2013.10 - 2014.9   

Awards 2

  1. Outstanding Paper Award of the Physical Society of Japan

    2021.3   Superconductivity in Ca#D1-x#DRLa#Dx#DRFeAs#D2#DR: A Novel 112-Type Iron Pnictide with Arsenic Zigzag Bonds

    Naoyuki Katayama, Kazutaka Kudo, Seiichiro Onari, Tasuku Mizukami, Kento Sugawara, Yuki Sugiyama, Yutaka Kitahama, Keita Iba, Kazunori Fujimura, Naoki Nishimoto, Minoru Nohara, and Hiroshi Sawa

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    Award type:Honored in official journal of a scientific society, scientific journal  Country:Japan

  2. 第9回(2015年)日本物理学会若手奨励賞(領域8)

    2015   日本物理学会   軌道揺らぎによる鉄系超伝導発現機構の研究

    大成 誠一郎

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    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

 

Papers 121

  1. Real-Space Loop Current Pattern in Time-Reversal-Symmetry Breaking Phasein Kagome Metals Reviewed

    Koki Shimura, Rina Tazai, Youichi Yamakawa, Seiichiro Onari, and Hiroshi Kontani

    Journal of the Physical Society of Japan   Vol. 93   page: 033704_1 - 033704_5   2024.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.7566/JPSJ.93.033704

  2. Low temperature phase transitions inside the CDW phase in the kagome metals A V3Sb5 (A=Cs, Rb, K): Significance of mixed-type Fermi surface electron correlations Reviewed

    J. Huang, R. Tazai, Y. Yamakawa, S. Onari, H. Kontani

    Physical Review B   Vol. 109 ( 4 ) page: L041110_1 - L041110_6   2024.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.109.L041110

    Scopus

  3. Three-dimensional bond-order instability in infinite-layer nickelates due to nonlocal quantum interference Reviewed

    Seiichiro Onari and Hiroshi Kontani

    Physical Review B   Vol. 108   page: L241119_1 - L241119_6   2023.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.108.L241119

  4. Rigorous formalism for unconventional symmetry breaking in Fermi liquid theory and its application to nematicity in FeSe Reviewed

      Vol. 107 ( 3 ) page: 035137_1 - 035137_16   2023.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.107.035137

    Scopus

  5. Unconventional density waves and superconductivities in Fe-based superconductors and other strongly correlated electron systems Invited Reviewed

    Hiroshi Kontani, Rina Tazai, Youichi Yamakawa, and Seiichiro Onari

    Advances in Physics   Vol. 107 ( 3 ) page: 355 - 443   2023.1

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

  6. Correlation-driven electronic nematicity in the Dirac semimetal BaNiS2 Reviewed

    Christopher John Butler, Yuhki Kohsaka, Youichi Yamakawa, Mohammad Saeed Bahramy, Seiichiro Onari, Hiroshi Kontani, Tetsuo Hanaguri, and Shinichi Shamoto

    Proceedings of the National Academy of Sciences of the United States of America   Vol. 119   page: e2212730119_1 - e2212730119_8   2022.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  7. 魔法角ツイスト2層グラフェンにおけるネマティック秩序―SU(4)揺らぎ間干渉機構― Invited Reviewed

    大成誠一郎、紺谷浩

    固体物理   Vol. 57 ( 10 ) page: 571 - 580   2022.10

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  8. Diverse Exotic Orders and Fermiology in Fe-Based Superconductors: A Unified Mechanism for B<sub>g</sub>/B<sub>g</sub> Nematicity in FeSe/(Cs,Rb)Fe<sub>2</sub>As<sub>2</sub> and Smectic Order in BaFe<sub>2</sub>As<sub>2</sub> Invited Reviewed

    Frontiers in Physics   Vol. 10   page: 915619_1 - 915619_15   2022.7

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.3389/fphy.2022.915619

    Scopus

  9. Mechanism of exotic density-wave and beyond-Migdal unconventional superconductivity in kagome metal AV<sub>3</sub>Sb<sub>5</sub> (A = K, Rb, Cs). Reviewed

    Tazai R, Yamakawa Y, Onari S, Kontani H

    Science advances   Vol. 8 ( 13 ) page: eabl4108   2022.4

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Science advances  

    Exotic quantum phase transitions in metals, such as the electronic nematic state, have been discovered one after another and found to be universal now. The emergence of unconventional density-wave (DW) order in frustrated kagome metal AV3Sb5 and its interplay with exotic superconductivity attract increasing attention. We find that the DW in kagome metal is the bond order, because the sizable intersite attraction is caused by the quantum interference among paramagnons. This mechanism is important in kagome metals because the geometrical frustration prohibits the freezing of paramagnons. In addition, we uncover that moderate bond-order fluctuations mediate sizable pairing glue, and this mechanism gives rise to both singlet s-wave and triplet p-wave superconductivity. Furthermore, characteristic pressure-induced phase transitions in CsV3Cb5 are naturally understood by the present theory. Thus, both the exotic density wave and the superconductivity in geometrically frustrated kagome metals are explained by the quantum interference mechanism.

    DOI: 10.1126/sciadv.abl4108

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    PubMed

  10. 金属電子系における新規な自発的対称性の破れ Reviewed

    田財里奈、大成誠一郎、紺谷浩

    日本物理学会誌   Vol. 77 ( 3 ) page: 145 - 154   2022.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  11. SU(4) Valley+Spin Fluctuation Interference Mechanism for Nematic Order in Magic-Angle Twisted Bilayer Graphene: The Impact of Vertex Corrections Reviewed

    Physical review letters   Vol. 128 ( 6 ) page: 066401   2022.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevLett.128.066401

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    PubMed

  12. Discovery of mesoscopic nematicity wave in iron-based superconductors Reviewed International coauthorship

    Shimojima T., Motoyui Y., Taniuchi T., Bareille C., Onari S., Kontani H., Nakajima M., Kasahara S., Shibauchi T., Matsuda Y., Shin S.

    Science   Vol. 373 ( 6559 ) page: 1122 - 1125   2021.9

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.1126/science.abd6701

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  13. Unconventional orbital charge density wave mechanism in the transition metal dichalcogenide 1T-TaS2 Reviewed

    Toru Hirata, Youichi Yamakawa, Seiichiro Onari, Hiroshi Kontani

    Physical Review Research   Vol. 3   page: L032053_1 - L032053_6   2021.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevResearch.3.L032053

  14. Development of Spin Fluctuations under the Presence of d-wave Bond Order in Cuprate Superconductors Reviewed

    Ando Satoshi, Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

    Journal of the Physical Society of Japan   Vol. 90 ( 6 ) page: 63704 - 63704   2021.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Physical Society of Japan  

  15. Electronic and crystal structures of<i>Ln</i>FeAsO<sub>1-x</sub>H<sub>x</sub>(<i>Ln</i>= La, Sm) studied by x-ray absorption spectroscopy, x-ray emission spectroscopy, and x-ray diffraction:II pressure dependence.

    Yamamoto Y, Yamaoka H, Kawai T, Yoshida M, Yamaura JI, Ishii K, Onari S, Uozumi T, Hariki A, Taguchi M, Kobayashi K, Lin JF, Hiraoka N, Ishii H, Tsuei KD, Okanishi H, Iimura S, Matsuishi S, Hosono H, Mizuki J

    Journal of physics. Condensed matter : an Institute of Physics journal   Vol. 33   page: 255603_1 - 255603_10   2021.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1361-648X/abfaf4

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  16. Electronic and crystal structures of<i>Ln</i>FeAsO<sub>1-x</sub>H<sub>x</sub>(<i>Ln</i>= La, Sm) studied by x-ray absorption spectroscopy, x-ray emission spectroscopy, and x-ray diffraction: I carrier-doping dependence. Reviewed

    Yamamoto Y, Yamaoka H, Uozumi T, Hariki A, Onari S, Yamaura JI, Ishii K, Kawai T, Yoshida M, Taguchi M, Kobayashi K, Lin JF, Hiraoka N, Ishii H, Tsuei KD, Okanishi H, Iimura S, Matsuishi S, Hosono H, Mizuki J

    Journal of physics. Condensed matter : an Institute of Physics journal   Vol. 33   page: 255602_1 - 255602_11   2021.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1361-648X/abf9b9

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  17. Odd-parity spin-loop-current order mediated by transverse spin fluctuations in cuprates and related electron systems Reviewed

    Hiroshi Kontani, Youichi Yamakawa, Rina Tazai, and Seiichiro Onari

    Physical Review Research   Vol. 3   page: 013127_1 - 013127_12   2021.2

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

  18. Spin-fluctuation-driven B1g and B2g Bond Order and Induced In-plane Anisotropy in Magnetic Susceptibility in Cuprate Superconductors: Impact of Hot-/Cold-spot Structure on Bond-order Symmetry Reviewed

    Kawaguchi Kouki, Onari Seiichiro, Kontani Hiroshi

    Journal of the Physical Society of Japan   Vol. 89 ( 12 ) page: 124704_1-124704_9   2020.12

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  19. Hidden antiferronematic order in Fe-based superconductor BaFe2As2 and NaFeAs above Ts Reviewed

    Onari Seiichiro, Kontani Hiroshi

    PHYSICAL REVIEW RESEARCH   Vol. 2 ( 4 )   2020.10

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevResearch.2.042005

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  20. Doping effects on electronic states in electron-doped FeSe: Impact of self-energy and vertex corrections Reviewed

    Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

    PHYSICAL REVIEW B   Vol. 102 ( 8 )   2020.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.102.081108

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  21. Superconductivity in 5d transition metal Laves phase SrIr2 Reviewed

    Horie R., Horigane K., Nishiyama S., Akimitsu M., Kobayashi K., Onari S., Kambe T., Kubozono Y., Akimitsu J.

    JOURNAL OF PHYSICS-CONDENSED MATTER   Vol. 32 ( 17 )   2020.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1361-648X/ab6a2e

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  22. Origin of diverse nematic orders in Fe-based superconductors: 45 degrees rotated nematicity in AFe2As2 (A=Cs, Rb) Reviewed

    Onari Seiichiro, Kontani Hiroshi

    PHYSICAL REVIEW B   Vol. 100 ( 2 )   2019.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.100.020507

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  23. Study of the Pressure-Induced Second Superconducting Phase of (NH3)(y)Cs0.4FeSe with Double-Dome Superconductivity

    Yamamoto Yoshiya, Yamaoka Hitoshi, Onari Seiichiro, Yoshida Masahiro, Hirao Naohisa, Kawaguchi Saori, Oishi Yasuo, Miao Xiao, Kubozono Yoshihiro, Lin Jung-Fu, Hiraoka Nozomu, Ishii Hirofumi, Liao Yen-Fa, Tsuei Ku-Ding, Mizuki Jun'ichiro

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   Vol. 88 ( 7 )   2019.7

  24. Paramagnetic Pair-Breaking in Spin-Triplet Superconductors with Spin-Orbit Coupling: Application to Sr2RuO4 Reviewed

    Oda Koushi, Tanaka Kenta K., Onari Seiichiro, Ichioka Masanori

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   Vol. 88 ( 6 ) page: 064707   2019.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.7566/JPSJ.88.064707

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  25. Local NMR relaxation rates T<sub>1</sub><sup>-1</sup> and T<sub>2</sub><sup>-1</sup> depending on the d-vector symmetry in the vortex state of chiral and helical p-wave superconductors Reviewed

    Kenta K. Tanaka, Masanori Ichioka, Seiichiro Onari

    Physical Review B   Vol. 97   page: 134507   2018.4

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  26. Orbital Order in Two-Orbital Hubbard Model Reviewed

    Honkawa Kojiro, Onari Seiichiro

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   Vol. 87 ( 3 )   2018.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.7566/JPSJ.87.034703

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  27. Theoretical analysis for spin-polarized local density of states in the vortex state of helical p-wave superconductors

    Kenta K. Tanaka, Masanori Ichioka, Seiichiro Onari

    28TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT28)   Vol. 969   2018

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    Language:English   Publishing type:Research paper (international conference proceedings)   Publisher:IOP PUBLISHING LTD  

    Based on the quasi-classical Eilenberger theory, we calculate the site-dependence of order-parameter and spin-polarized local density of states (LDOS) in the vortex lattice state of helical p-wave superconductors. The spin-polarized LDOS is induced around the vortex core by the vorticity coupling to the chirality of up-spin pair or down-spin pair. In order to distinguish the d-vector symmetry, we investigate the magnetic field effect on the spatial structure of the spin-polarized LDOS.

    DOI: 10.1088/1742-6596/969/1/012043

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  28. In-plane anisotropy of transport coefficients in electronic nematic states: Universal origin of nematicity in Fe-based superconductors

    Onari Seiichiro, Kontani Hiroshi

    PHYSICAL REVIEW B   Vol. 96 ( 9 )   2017.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.96.094527

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  29. Pair breaking of multigap superconductivity under parallel magnetic fields in the electric-field-induced surface metallic state Reviewed

    Nabeta Masahiro, Tanaka Kenta K., Onari Seiichiro, Ichioka Masanori

    PHYSICAL REVIEW B   Vol. 96 ( 9 )   2017.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.96.094522

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  30. Electronic structures and spin states of BaFe2As2 and SrFe2As2 probed by x-ray emission spectroscopy at Fe and As K-absorption edges Reviewed

    Yamaoka Hitoshi, Yamamoto Yoshiya, Lin Jung-Fu, Wu Junjie J., Wang Xiancheng, Jin Changqing, Yoshida Masahiro, Onari Seiichiro, Ishida Shigeyuki, Tsuchiya Yoshinori, Takeshita Nao, Hiraoka Nozomu, Ishii Hirofumi, Tsuei Ku-Ding, Chow Paul, Xiao Yuming, Mizuki Jun'ichiro

    PHYSICAL REVIEW B   Vol. 96 ( 8 )   2017.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.96.085129

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  31. Spin-polarized local density of states in the vortex state of helical p-wave superconductors Reviewed

    Tanaka Kenta K., Ichioka Masanori, Onari Seiichiro

    PHYSICAL REVIEW B   Vol. 95 ( 13 )   2017.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.95.134502

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  32. Paramagnetic and diamagnetic pair-breaking effect in electric-field-induced surface superconductivity under parallel magnetic fields Reviewed

    Masanori Ichioka, Masahiro Nabeta, Kenta K. Tanaka, and Seiichiro Onari

    Journal of Physics: Conference Series   Vol. 871   page: 012001_1-012001_6   2017

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  33. Spin-polarized local density of states around vortex in helical p-wave superconductors Reviewed

    Kenta K. Tanaka, Masanori Ichioka, and Seiichiro Onari

    Journal of Physics: Conference Series   Vol. 871   page: 012024_1-012024_7   2017

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  34. Iron arsenides with three-dimensional FeAs layer networks: Can(n+1)/2(Fe1-xPtx)((2+3n))Ptn(n-1)/2 As(n+1)(n+2)/2 (n=2, 3) Reviewed

    Katayama Naoyuki, Onari Seiichiro, Matsubayashi Kazuyuki, Uwatoko Yoshiya, Sawa Hiroshi

    SCIENTIFIC REPORTS   Vol. 6   2016.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1038/srep39280

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  35. Pair-breaking effects by parallel magnetic field in electric-field-induced surface superconductivity Reviewed

    Nabeta Masahiro, Tanaka Kenta K., Onari Seiichiro, Ichioka Masanori

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   Vol. 530   page: 8-10   2016.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physc.2016.04.006

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  36. Effects of vorticity and impurity on NMR relaxation rate in chiral p-wave superconductors Reviewed

    Tanaka Kenta K., Ichioka Masanori, Onari Seiichiro

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   Vol. 530   page: 62-64   2016.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.physc.2016.03.003

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  37. Nematicity and Magnetism in FeSe and Other Families of Fe-Based Superconductors Reviewed

    Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

    PHYSICAL REVIEW X   Vol. 6 ( 2 )   2016.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevX.6.021032

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  38. Sign-Reversing Orbital Polarization in the Nematic Phase of FeSe due to the C-2 Symmetry Breaking in the Self-Energy Reviewed

    Onari Seiichiro, Yamakawa Youichi, Kontani Hiroshi

    PHYSICAL REVIEW LETTERS   Vol. 116 ( 22 )   2016.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevLett.116.227001

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  39. Site-selective NMR for odd-frequency Cooper pairs around vortex in chiral p-wave superconductors Reviewed

    Tanaka Kenta K., Ichioka Masanori, Onari Seiichiro

    PHYSICAL REVIEW B   Vol. 93 ( 9 )   2016.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.93.094507

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  40. Revisiting orbital-fluctuation-mediated superconductivity in LiFeAs: Nontrivial spin-orbit interaction effects on the band structure and superconducting gap function Reviewed

    Saito Tetsuro, Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

    PHYSICAL REVIEW B   Vol. 92 ( 13 )   2015.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.92.134522

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  41. Superconductivity in MgPtSi: An orthorhombic variant of MgB2 Reviewed

    Kudo Kazutaka, Fujimura Kazunori, Onari Seiichiro, Ota Hiromi, Nohara Minoru

    PHYSICAL REVIEW B   Vol. 91 ( 17 )   2015.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.91.174514

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  42. Spin-triplet superconductivity in Sr2RuO4 due to orbital and spin fluctuations: Analyses by two-dimensional renormalization group theory and self-consistent vertex-correction method Reviewed

    Tsuchiizu Masahisa, Yamakawa Youichi, Onari Seiichiro, Ohno Yusuke, Kontani Hiroshi

    PHYSICAL REVIEW B   Vol. 91 ( 15 )   2015.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.91.155103

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  43. Eilenberger theory for nuclear magnetic relaxation rate in superconducting vortex lattice state Reviewed

    Tanaka Kenta K., Ichioka Masanori, Onari Seiichiro, Nakai Noriyuki, Machida Kazushige

    PHYSICAL REVIEW B   Vol. 91 ( 1 )   2015.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.91.014509

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  44. Reproduction of experimental gap structure in LiFeAs based on orbital-spin fluctuation theory: s(++)-wave, s(+/-)-wave, and hole-s(+/-)-wave states Reviewed

    Saito Tetsuro, Onari Seiichiro, Yamakawa Youichi, Kontani Hiroshi, Borisenko Sergey V., Zabolotnyy Volodymyr B.

    PHYSICAL REVIEW B   Vol. 90 ( 3 )   2014.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevB.90.035104

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  45. High-Tc Superconductivity near the Anion Height Instability in Fe-Based Superconductors: Analysis of LaFeAsO1-xHx Reviewed

    Seiichiro Onari, Youichi Yamakawa, and Hiroshi Kontani

    Physical Review Letters   Vol. 112   page: 187001_1-187001_5   2014

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  46. Effect of realistic finite-size impurities on Tc in Fe-based superconductors based on the five-orbital tight-binding model Reviewed

    Youichi Yamakawa, Seiichiro Onari and Hiroshi Kontani

    Physical Review B   Vol. 87   page: 195121_1- 195121_10   2013

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  47. Spin-Fluctuation-Driven Orbital Nematic Order in Ru-Oxides: Self-Consistent Vertex Correction Analysis for Two-Orbital Model Reviewed

    Yusuke Ohno, Masahisa Tsuchiizu, Seiichiro Onari, and Hiroshi Kontani

    Journal of the Physical Society of Japan   Vol. 82   page: 013707_1-013707_4   2013

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  48. Superconducting Pairing Symmetry on the Extended Hubbard Model in the Presence of the Rashba-Type Spin-Orbit Coupling Reviewed

    Keisuke Shigeta, Seiichiro Onari, and Yukio Tanaka

    Journal of the Physical Society of Japan   Vol. 82   page: 014702_1-014702_9   2013

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  49. Nodal gap structure in Fe-based superconductors due to the competition between orbital and spin fluctuations Reviewed

    Tetsuro Saito, Seiichiro Onari, Hiroshi Kontani

    Physical Review B   Vol. 88   page: 045115_1- 045115_11   2013

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  50. Study of phase diagram and superconducting states in LaFeAsO1-xHx based on the multiorbital extended Hubbard model Reviewed

    Youichi Yamakawa, Seiichiro Onari, Hiroshi Kontani, Naoki Fujiwara, Soshi Iimura, Hideo Hosono

    Physical Review B   Vol. 88   page: 041106(R)_1- 041106(R)_5   2013

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  51. Zigzag chain structure transition and orbital fluctuations in Ni-based superconductors Reviewed

    Youichi Yamakawa, Seiichiro Onari, Hiroshi Kontani

    Journal of the Physical Society of Japan   Vol. 82   page: 094704_1-094704_6   2013

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  52. 鉄系超伝導体における「軌道の物理」の新展開 Reviewed

    大成 誠一郎, 紺谷 浩

    日本物理学会誌   Vol. 68 ( 4 ) page: 231-235   2013

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    Authorship:Lead author   Language:Japanese  

  53. Orbital Nematic Instability in Two-Orbital Hubbard Model: Renormalization-Group + Constrained RPA Analysis Reviewed

    Masahisa Tsuchiizu, Yusuke Ohno, Seiichiro Onari, Hiroshi Kontani

    Physical Review Letters   Vol. 111   page: 057003_1-057003_5   2013

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    Language:English   Publishing type:Research paper (scientific journal)  

  54. Possible Odd-Frequency Pairing in Quasi-One-Dimensional Organic Superconductors (TMTSF)2X Reviewed

    Keisuke Shigeta, Seiichiro Onari, and Yukio Tanaka

    Journal of the Physical Society of Japan   Vol. 82   page: 104702_1-104702_5   2013

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  55. Superconductivity in Ca1-xLaxFeAs2: A Novel 112-Type Iron Pnictide with Arsenic Zigzag Bonds Reviewed

    Naoyuki Katayama, Kazutaka Kudo, Seiichiro Onari, Tasuku Mizukami, Kento Sugawara, Yuki Sugiyama, Yutaka Kitahama, Keita Iba, Kazunori Fujimura, Naoki Nishimoto, Minoru Nohara, Hiroshi Sawa

    Journal of the Physical Society of Japan   Vol. 82   page: 123702_1-123702_4   2013

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  56. Phase diagram and superconducting states in LaFeAsO1-xHx based on the multiorbital extended Hubbard model Reviewed

    Youichi Yamakawa, Seiichiro Onari, Hiroshi Kontani, Naoki Fujiwara, Soshi Iimura, Hideo Hosono

    Physical Review B   Vol. 88   page: 041106(R)_1- 041106(R)_5   2013

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  57. Non-Fermi-liquid transport phenomena and superconductivity driven by orbital fluctuations in iron pnictides: Analysis by fluctuation-exchange approximation Reviewed

    Seiichiro Onari and Hiroshi Kontani

    Physical Review B   Vol. 85   page: 134507_1-134507_6   2012

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  58. Orbital fluctuation theory in iron-based superconductors: s++-wave superconductivity, structure transition, and impurity-induced nematic order Reviewed

    Hiroshi Kontani, Yoshio Inoue, Tetsuro Saito, Youichi Yamakawa, Seiichiro Onari

    Solid State Communications   Vol. 152 ( 8 ) page: 718-727   2012

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  59. Symmetry of superconducting pairing state in a staggered field Reviewed

    Keisuke Shigeta, Seiichiro Onari, and Yukio Tanaka

    Physical Review B   Vol. 85   page: 224509_1-224509_13   2012

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  60. Self-Consistent Vertex Correction Analysis for Iron-Based Superconductors: Mechanism of Coulomb-Interaction-Driven Orbital Fluctuations Reviewed

    Seiichiro Onari and Hiroshi Kontani

    Physical Review Letters   Vol. 109   page: 137001_1-137001_5   2012

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  61. Effect of inelastic scattering on the nuclear magnetic relaxation rate 1/T1T in iron-based superconductors Reviewed

    Youichi Yamakawa, Seiichiro Onari and Hiroshi Kontani

    Superconductor Science and Technology   Vol. 25   page: 084006_1-084006_9   2012

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  62. Observation of the hole state symmetry of MgB2 by inelastic scattering of fast electrons accompanied by boron K-shell excitation Reviewed

    Koh Saitoh, Kota Momonoi, Nobuo Tanaka, and Seiichiro Onari

    Journal of Applied Physics   Vol. 112   page: 113920_1-113920_5   2012

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  63. Emergence of fully gapped s++-wave and nodal d-wave states mediated by orbital and spin fluctuations in a ten-orbital model of KFe2Se2 Reviewed

    Tetsuro Saito, Seiichiro Onari, and Hiroshi Kontani

    Physical Review B   Vol. 83   page: 140512-1-140512-4(R)   2011

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  64. Competition of pairing symmetries and a mechanism for Berezinskii pairing in quasi-one-dimensional systems Reviewed

    Keisuke Shigeta, Yukio Tanaka, Kazuhiko Kuroki, Seiichiro Onari, and Hirohito Aizawa

    Physical Review B   Vol. 83   page: 140509_1-140509_4(R)   2011

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  65. Neutron inelastic scattering peak by dissipationless mechanism in the s++-wave state in iron-based superconductors Reviewed

    Seiichiro Onari and Hiroshi Kontani

    Physical Review B   Vol. 84   page: 144518_1-144518_9   2011

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  66. Study of non-Fermi-liquid-like state and pairing symmetry in iron pnictides based on the multiorbital Hubbard-Holstein model Reviewed

    Seiichiro Onari and Hiroshi Kontani

    Physica C   Vol. 471   page: 670-674   2011

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  67. Theory of the beta-Type Organic Superconductivity under Uniaxial Compression Reviewed

    Takeo Suzuki, Seiichiro Onari, Hiroshi Ito, and Yukio Tanaka

    Journal of the Physical Society of Japan   Vol. 80   page: 094704_1-094704_8   2011

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  68. Origin of orthorhombic transition, magnetic transition, and shear-modulus softening in iron pnictide superconductors: Analysis based on the orbital fluctuations theory Reviewed

    Hiroshi Kontani, Tetsuro Saito, and Seiichiro Onari

    Physical Review B   Vol. 84   page: 024528_1-024528_17   2011

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  69. Structure of neutron-scattering peaks in both s++-wave and s±-wave states of an iron pnictide superconductor Reviewed

    Seiichiro Onari, Hiroshi Kontani, and Masatoshi Sato

    Physical Review B   Vol. 81   page: 060504-1-060504-4(R)   2010.4

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  70. Spin Hall effect in a curved graphene with spin-orbit interaction Reviewed

    Takashi Kato, Seiichiro Onari, Jun-ichiro Inoue

    Physica E   Vol. 42   page: 729-731   2010

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  71. Orbital fluctuation theory in iron pnictides: Effects of As-Fe-As bond angle, isotope substitution, and Z2-orbital pocket on superconductivity Reviewed

    Tetsuro Saito, Seiichiro Onari, and Hiroshi Kontani

    Physical Review B   Vol. 82   page: 144510-1-144510-10   2010

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  72. Nonmagnetic impurity effects and neutron scattering spectrum in iron pnictides Reviewed

    Seiichiro Onari, Hiroshi Kontani

    Physica C   Vol. 470   page: 1007-1009   2010

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  73. Orbital-Fluctuation-Mediated Superconductivity in Iron Pnictides: Analysis of the Five-Orbital Hubbard-Holstein Model Reviewed

    Hiroshi Kontani, Seiichiro Onari

    Physical Review Letters   Vol. 104   page: 157001-1-157001-4   2010

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  74. Superconductivity of beta-type salts under uniaxial compression Reviewed

    Hiroshi Ito, Tetsuo Ishihara, Masafumi Niwa, Takeo Suzuki, Seiichiro Onari, Yukio Tanaka,Jun-ichi Yamada, Hideki Yamochi, Gunzi Saito

    Physica B   Vol. 405   page: S262–S264   2010

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  75. Pnictogen height as a switch between high-Tc nodeless and low-Tc nodal pairings in the iron-based superconductors Reviewed

    Kazuhiko Kuroki, Hidetomo Usui, Seiichiro Onari, Ryotaro Arita and Hideo Aoki

    Physica C   Vol. 470   page: S416-S417   2010

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  76. Density of state in the odd-frequency superconducting state in a quasi-one-dimensional system Reviewed

    Keisuke Shigeta, Seiichiro Onari, Keiji Yada and Yukio Tanaka

    Physica C   Vol. 470   page: S959-S961   2010

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  77. Theory of Josephson Effect in Strongly Correlated Electron Systems Reviewed

    Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

    Physica C   Vol. 470   page: S884-S885   2010

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  78. Violation of Anderson's Theorem for the Sign-Reversing s-Wave State of Iron-Pnictide Superconductors Reviewed

    Seiichiro Onari, Hiroshi Kontani

    Physical Review Letters   Vol. 103   page: 177001-1-177001-4   2009

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  79. Electrically controlled superconducting states at the heterointerface SrTiO3/LaAlO3 Reviewed

    Keiji Yada, Seiichiro Onari, Yukio Tanaka, and Jun-ichiro Inoue

    Physical Review B   Vol. 80   page: 140509-1-140509-4(R)   2009

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  80. Unconventional pairing originating from disconnected Fermi surfaces in the iron-based superconductor Reviewed

    Kazuhiko Kuroki, Seiichiro Onari, Ryotaro Arita, Hidetomo Usui, Yukio Tanaka, Hiroshi Kontani, Hideo Aoki

    New Journal of Physics   Vol. 11   page: 025017_1-8   2009

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  81. Odd-frequency pairings in a non-centrosymmetric system Reviewed

    Keiji Yada, Seiichiro Onari, and Yukio Tanaka

    Physica C   Vol. 469   page: 991-994   2009

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  82. Odd-frequency superconductivity on quasi-one-dimensional triangular lattice in the Hubbard model Reviewed

    Keisuke Shigeta, Seiichiro Onari, Keiji Yada, Yukio Tanaka

    Physica C   Vol. 469   page: 988-990   2009

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  83. Superconductivity under uniaxial compression in beta-(BDA-TTP) salts Reviewed

    Takeo Suzuki, Seiichiro Onari, Hiroshi Ito, Yukio Tanaka

    Physica C   Vol. 469   page: 979-981   2009

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  84. Theory of tunneling spectroscopy in LaFeAsO1-xFx Reviewed

    Seiichiro Onari, Yukio Tanaka

    Physica C   Vol. 469   page: 912-914   2009

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  85. Pnictogen height as a possible switch between high-Tc nodeless and low-Tc nodal pairings in the iron-based superconductors Reviewed

    Kazuhiko Kuroki, Hidetomo Usui, Seiichiro Onari, Ryotaro Arita, and Hideo Aoki

    Physical Review B   Vol. 79   page: 224511-1-224511-16   2009

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  86. Surface density of states of s+-wave Cooper pairs in a two-band superconductor model Reviewed

    Seiichiro Onari and Yukio Tanaka

    Physical Review B   Vol. 79   page: 174526-1-174526-6   2009

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  87. Theory of odd-frequency pairings on a quasi-one-dimensional lattice in the Hubbard model Reviewed

    Keisuke Shigeta, Seiichiro Onari, Keiji Yada, and Yukio Tanaka

    Physical Review B   Vol. 79   page: 174507-1-174507-6   2009

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  88. Fluctuation exchange study on the double chain superconductor Pr2Ba4Cu7O15-δ Reviewed

    Tsuguhito Nakano, Kazuhiko Kuroki, and Seiichiro Onari

    Physica B   Vol. 403   page: 1159-1161   2008

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  89. Unconventional Superconductivity Originating from Disconnected Fermi Surfaces in the Iron-Based Oxypnictide Reviewed

    K. Kuroki, S.Onari, R. Arita, H. Usui, Y. Tanaka, H. Kontani, and H. Aoki

    Journal of the Physical Society of Japan, Supplement   Vol. 77   page: 96-98   2008

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  90. Unified origin for superconductivity,magnetism, and large thermopower in NaxCoO2 Reviewed

    Kazuhiko Kuroki, Shuhei Okubo, Takumi Nojima, Hidetomo Usui, Ryotaro Arita, Seiichiro Onari, Yukio Tanaka

    Journal of Physics and Chemistry of Solids   Vol. 69   page: 3360-3364   2008

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  91. Diagonalization Study on the extended Hubbard model in an anisotropic triangular lattice Reviewed

    Ken Kanada, Tsutomu Watanabe, Seiichiro Onari and Yukio Tanaka

    Journal of Physics and Chemistry of Solids   Vol. 69   page: 3334-3336   2008

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  92. Odd-Frequency superconductivity in the 2D extended Hubbard model Reviewed

    Keiji Yada, Yuichiro Shimokaji, Seiichiro Onari, Yuiko Tanaka and Kazumasa Miyake

    Journal of Physics and Chemistry of Solids   Vol. 69   page: 3321-3323   2008

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  93. Spin-triplet superconductivity induced by off-site Coulomb interaction in a triangular lattice Reviewed

    Hiroshi Kimura, Seiichiro Onari and Yukio Tanaka

    Journal of Physics and Chemistry of Solids   Vol. 69   page: 3310-3312   2008

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  94. Electronic state on the surface in the strongly correlated electron systems Reviewed

    Seiichiro Onari, Tetsuya Hata, Yukio Tanaka and Jun-ichiro Inoue

    Journal of Physics and Chemistry of Solids   Vol. 69   page: 3307-3309   2008

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  95. Odd-frequency superconductivity on the Hubbard model using the FLEX approximation Reviewed

    Yuichiro Shimokaji, Seiichiro Onari, Yukio Tanaka and Kazumasa Miyake

    Journal of Physics and Chemistry of Solids   Vol. 69   page: 3280-3282   2008

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  96. Roles of spin fluctuation and frustration in the superconductivity of beta-(BDA-TTP)2X (X=SbF6,AsF6) under uniaxial compression Reviewed

    Hiroshi Ito, Tetsuo Ishihara, Hisaaki Tanaka, Shin-ichi Kuroda, Takeo Suzuki, Seiichiro Onari, Yukio Tanaka, Jun-ichi Yamada, and Koichi Kikuchi

    Physical Review B   Vol. 78   page: 172506-1- 172506-4   2008

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  97. Intrinsic spin Hall effect in graphene: Numerical calculations in a multiorbital model Reviewed

    Seiichiro Onari, Yasuhito Ishikawa, Hiroshi Kontani, and Jun-ichiro Inoue

    Physical Review B   Vol. 78   page: 121403-1-121403-4 (R)   2008

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  98. Unconventional Pairing Originating from the Disconnected Fermi Surfaces of Superconducting LaFeAsO1-xFx Reviewed

    Kazuhiko Kuroki, Seiichiro Onari, Ryotaro Arita, Hidetomo Usui, Yukio Tanaka, Hiroshi Kontani, and Hideo Aoki

    Physical Review Letters   Vol. 101   page: 087004-1-087004-4   2008

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  99. Theory of Fulde-Ferrell-Larkin-Ovchinnikov state of superconductors with and without inversion symmetry: Hubbard model approach Reviewed

    Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

    Journal of the Physical Society of Japan   Vol. 77   page: 064711-1-064711-8   2008

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  100. Unified origin for superconductivity and 3D magnetism in NaxCoO2 Reviewed

    Kazuhiko Kuroki, Shuhei Okubo, Takumi Nojima, Hidetomo Usui, Ryotaro Arita, Seiichiro Onari, Yukio Tanaka

    Physica B   Vol. 403   page: 1151-1153   2008

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  101. Spin-dependent Mass Enhancement under a Magnetic Field in the Periodic Anderson Model Reviewed

    Seiichiro Onari, Hiroshi Kontani, and Yukio Tanaka

    Journal of the Physical Society of Japan   Vol. 77   page: 023703-1-023703-4   2008

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  102. Anomalous transport phenomena in CeCoIn5 close to quantum critical point Reviewed

    Seiichiro Onari, Hiroshi Kontani, Yukio Tanaka

    Journal of Magnetism and Magnetic Materials   Vol. 310   page: 359-361   2007

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  103. Enhanced triplet superconductivity in noncentrosymmetric systems Reviewed

    Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

    Physical Review B   Vol. 75   page: 172511-1-172511-4   2007

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  104. Variational Monte Carlo study of pairing symmetry in Sr2RuO4 Reviewed

    Shogo Fujita, Tsutomu Watanabe, Seiichiro Onari, Hisatoshi Yokoyama,Yukio Tanaka, Jun-ichiro Inoue

    Physica C   Vol. 463-465   page: 134-137   2007

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  105. Quasiparticle density of states in high-Tc superconductors in the superconducting state Reviewed

    T. Hata, S. Onari, S. Honda, H. Itoh, Y. Tanaka, J. Inoue

    Physica C   Vol. 463-465   page: 123-125   2007

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  106. Phase diagram of half-filled square lattice for frustrated Hubbard model Reviewed

    Seiichiro Onari, Hisatoshi Yokoyama, Yukio Tanaka

    Physica C   Vol. 463-465   page: 120-122   2007

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  107. Superconductivity due to spin fluctuations originating from multiple Fermi surfaces in the double chain superconductor Pr2Ba4Cu7O15-δ Reviewed

    Tsuguhito Nakano, Kazuhiko Kuroki and Seiichiro Onari

    Physical Review B   Vol. 76   page: 014515-1-014515-7   2007

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  108. Local density of states at zigzag edges of carbon nanotubes and graphene Reviewed

    Ken-ichi Sasaki, Kentaro Sato, Riichiro Saito, Jie Jiang, Seiichiro Onari and Yukio Tanaka

    Physical Review B   Vol. 75   page: 235430-1-235430-7   2007

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  109. Unified Origin for the 3D Magnetism and Superconductivity in NaxCoO2 Reviewed

    Kazuhiko Kuroki, Shuhei Ohkubo, Takumi Nojima, Ryotaro Arita, Seiichiro Onari, Yukio Tanaka

    Physical Review Letters   Vol. 98   page: 136401-1-136401-4   2007

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  110. Theory of Superconductivity of Carbon Nanotubes and Graphene Reviewed

    K. Sasaki, J. Jiang, R. Saito, S. Onari, Y. Tanaka

    Journal of the Physical Society of Japan   Vol. 76   page: 033702-1-033702-4   2007

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  111. Superconductivity from a long-range interaction: a crossover between the electron gas and the lattice model Reviewed

    Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

    Physical Review B   Vol. 73   page: 014526-1-014526-5   2006

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  112. Transport phenomena in a three-dimensional system close to the magnetic quantum critical point: The conserving approximation with current vertex corrections Reviewed

    Seiichiro Onari, Hiroshi Kontani, Yukio Tanaka

    Physical Review B   Vol. 73   page: 224434-1-224434-10   2006

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  113. Extended s-wave pairing originating from the a1g band in NaxCoO2yH2O: Single-band U-V model with fluctuation exchange method Reviewed

    K. Kuroki, S. Onari, Y. Tanaka, R. Arita, T. Nojima

    Physical Review B   Vol. 73   page: 184503-1-184503-6   2006

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  114. Spin-Triplet Superconductivity Induced by Charge Fluctuations in Extended Hubbard Model Reviewed

    Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

    Journal of the Physical Society of Japan   Vol. 74 ( 9 ) page: 2579-2585   2005.9

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  115. Phase diagram of the two-dimensional extended Hubbard model: pairing from charge and spin fluctuations Reviewed

    Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

    Physica B   Vol. 359-361   page: 518-520   2005

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  116. Off-site repulsion-induced triplet pairing: DCA and FLEX study for Sr2RuO4 Reviewed

    Ryotaro Arita, Seiichiro Onari, Kazuhiko Kuroki, Hideo Aoki

    Physica B   Vol. 359-361   page: 584-586   2005

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  117. Off-site repulsion-induced triplet superconductivity: A possibility for chiral pxy-wave pairing in Sr2RuO4 Reviewed

    Ryotaro Arita, Seiichiro Onari, Kazuhiko Kuroki, Hideo Aoki

    Physical Review Letters   Vol. 92   page: 247006-1-247006-4   2004

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  118. Phase diagram of the two-dimensional extended Hubbard model: Phase transitions between different pairing symmetries when charge and spin fluctuations coexist Reviewed

    Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

    Physical Review B   Vol. 70   page: 094523-1-094523-6   2004

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  119. Superconductivity in repulsive electron systems with three-dimensional disconnected Fermi surfaces Reviewed

    Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

    Physical Review B   Vol. 68   page: 024525-1-024525-7   2003

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  120. Effect of inter-band nesting on superconductivity in stacked honeycomb lattices Reviewed

    Seiichiro Onari, Kazuhiko Kuroki, Ryotaro Arita and Hideo Aoki

    Physica B   Vol. 329   page: 1437-1439   2003

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  121. Superconductivity induced by interband nesting in the three-dimensional honeycomb lattice Reviewed

    Seiichiro Onari, Kazuhiko Kuroki, Ryotaro Arita, Hideo Aoki

    Physical Review B   Vol. 65   page: 184525-1-184525-6   2002

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▼display all

Books 4

  1. パリティ 1月号 特集:物理科学, この1年

    大成誠一郎( Role: Contributor)

    丸善出版  2017 

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    Language:Japanese Book type:Scholarly book

  2. Iron-Based Superconductivity

    大成 誠一郎、紺谷浩( Role: Joint author)

    Springer Verlag Berlin and Heidelberg GmbH & Co. K  2015 

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    Language:English Book type:Scholarly book

  3. 計算科学講座10 巻:超多自由度系の新しい科学

    田仲由喜夫,大成誠一郎,渡邊努( Role: Joint author)

    共立出版  2011.10 

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    Language:Japanese

  4. Spintronics―Basics and Forefront of Materials and Applications

    ( Role: Joint author)

    2009.6 

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    Language:Japanese

Presentations 109

  1. はじめに Invited

    大成誠一郎

    日本物理学会  2024.3.21 

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:オンライン   Country:Japan  

  2. 無限層ニッケル酸化物の電子状態及び非フェルミ液体的輸送現象

    平上信一,大成誠一郎

    日本物理学会  2024.3.18 

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (general)  

    Venue:オンライン  

  3. Three-dimensional CDW order in kagome metal: Analysis of 3D DW equation

    Seiichiro Onari, Youichi Yamakawa, Rina Tazai, and Hiroshi Kontani

    2023.12.27 

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    Event date: 2023.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  4. カゴメ金属における3次元CDW秩序:3次元DW方程式の解析

    大成誠一郎,山川洋一,田財里奈,紺谷浩

    京都大学基礎物理学研究所研究会「超伝導研究の発展と広がり」  2023.12.22 

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    Event date: 2023.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:京都大学基礎物理学研究所   Country:Japan  

  5. カゴメ金属における3次元CDW秩序:GL理論の3次項の解析

    大成誠一郎,山川洋一,田財里奈,紺谷浩

    日本物理学会  2023.9.16 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東北大学   Country:Japan  

  6. 強相関電子系のネマティック秩序発現機構:鉄系超伝導体とツイスト2層 グラフェンの比較 Invited

    大成誠一郎

    研究会「強相関電子系のフロンティア」  2023.8.21  大成誠一郎

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    Event date: 2023.8

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:名古屋大学 坂田平田ホール   Country:Japan  

  7. Three-dimensional CDW order in kagome metal: Analysis of third-order term in three-dimensional GL theory International conference

    Seiichiro Onari, Youichi Yamakawa, Rina Tazai, and Hiroshi Kontani

    International Conference on Quantum Liquid Crystals 2023 (QLC2023)  2023.8.9 

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    Event date: 2023.8

    Language:English   Presentation type:Poster presentation  

    Venue:Hokkaido University, Sapporo, Japan   Country:Japan  

  8. SU(4) valley+spin fluctuation in magic-angle twisted bilayer graphene International conference

    Seiichiro Onari, Daisuke Inoue, and Hiroshi Kontani

    SCES2023  2023.7.3 

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    Event date: 2023.7

    Language:English   Presentation type:Poster presentation  

    Venue:Songdo ConvensiA, Incheon, Korea   Country:Korea, Republic of  

  9. Theoretical analysis of three-dimensional CDW order in kagome metal

    2023.3.24 

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    Event date: 2023.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  10. ねじれ2層グラフェンにおける多チャンネルSU(4)相互作用がもたらす新規量子相転移機構 Invited

    大成誠一郎

    京都大学基礎物理学研究所研究会「非自明な電子状態で発現する超伝導現象の新しい潮流」  2022.12.22 

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    Event date: 2022.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学基礎物理学研究所   Country:Japan  

  11. Analysis of period-three CDW order in three-dimensional strongly correlated electron system NdNiO2

    Seiichiro Onari and Hiroshi Kontani

    2022.12.9 

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    Event date: 2022.12

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  12. Theoretical analysis of the period-three CDW in infinite-layer nickelate superconductor NdNiO2

    S. Onari and H. Kontani

    2022.9.13 

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  13. SU(4) valley+spin fluctuation interference mechanism for nematic order in magic-angle twisted bilayer graphene International conference

    S. Onari and H. Kontani

    LT29  2022.8.20 

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    Event date: 2022.8

    Language:English   Presentation type:Poster presentation  

    Venue:Sapporo Convention Center   Country:Japan  

  14. SU(4)揺らぎ干渉機構によるねじれ2層グラフェンのNematic秩序:鉄系超伝導体との比較

    大成誠一郎, 紺谷浩

    日本物理学会 第77回年次大会 (2022年)  2022.3.15 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  15. FeSe1-xSxとFeSe1-xTexの3次元モデルの作成および電子状態の解析

    伊藤美咲子, 大成誠一郎

    日本物理学会 第77回年次大会 (2022年)  2022.3.15 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Poster presentation  

    Venue:オンライン   Country:Japan  

  16. 魔法角ツイスト2層グラフェンにおけるネマティック秩序:SU(4)揺らぎ干渉機構

    大成誠一郎, 紺谷浩

    高温超伝導フォーラム第9回会合   2022.3.14 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  17. SU(4) fluctuation interference mechanism of nematic order in magic angle twisted bilayer graphene

    S. Onari, H. Kontani

    2022.2.18 

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    Event date: 2022.2

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  18. Fe(Se,Te)とツイスト2層グラフェンのネマティック状態の⽐較

    ⼤成誠⼀郎, 紺谷浩

    京都⼤学基礎物理学研究所研究会 「⾮⾃明な電⼦状態が⽣み出す超伝導現象の最前線:新たな挑戦と展望」  2021.12.22 

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    Event date: 2021.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学   Country:Japan  

  19. FeSe1-xTexのネマティック臨界現象の理論解析

    大成 誠一郎, 紺谷 浩

    日本物理学会  2021.9.23 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

  20. Analysis of phase diagram in FeSe1-xTex International conference

    Seiichiro Onari, Youichi Yamakawa, and Hiroshi Kontani

    International Conference on Quantum Liquid Crystals 2021 (QLC2021)   2021.5.11 

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    Event date: 2021.5

    Language:English   Presentation type:Poster presentation  

    Venue:On line  

  21. Nematic order in twisted bilayer graphene by valley + spin fluctuation interference mechanism International conference

    Seiichiro Onari, Hiroshi Kontani

    American Physical Society March Meeting 2021  2021.3.17 

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    Event date: 2021.3

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Zoom  

  22. ツイスト2層グラフェンにおける強相関電子状態の解析

    大成誠一郎、紺谷浩

    日本物理学会  2021.3.14 

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    Event date: 2021.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Zoom  

  23. ツイスト2層グラフェンのネマティック状態及び超伝導状態の解析

    大成誠一郎、紺谷浩

    高温超伝導フォーラム  2021.3.11 

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    Event date: 2021.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Zoom  

  24. Mechanism of nematic order in twisted bilayer graphene

    Seiichiro Onari, Hiroshi Kontani

    2020.12.22 

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    Event date: 2020.12

    Language:English   Presentation type:Poster presentation  

    Venue:Zoom  

  25. Twisted bilayer graphene におけるネマティック秩序発現機構:ボンド秩序とバレーカレントの共存

    大成誠一郎, 紺谷浩

    基研研究会「高温超伝導・非従来型超伝導研究の最前線:多様性と普遍性」 

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    Event date: 2020.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  26. ツイスト2層グラフェンにおけるネマティック秩序発現機構

    大成誠一郎, 紺谷浩

    日本物理学会 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  27. 強相関電子系におけるネマティック秩序及び超伝導機構

    大成誠一郎, 紺谷浩

    日本物理学会 

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    Event date: 2020.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋大学   Country:Japan  

  28. 鉄系超伝導体における多様なネマティック秩序および超伝導発現機構 Invited

    大成誠一郎

    京都大学基礎物理学研究所研究会「電子相関が生み出す超伝導現象の未解決問題と新しい潮流」 

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    Event date: 2019.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学基礎物理学研究所   Country:Japan  

  29. BaFe2As2における多段ネマティック秩序の理論:保存近似の適用

    大成誠一郎, 紺谷浩

    日本物理学会 

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    Event date: 2019.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岐阜大学   Country:Japan  

  30. Theoretical prediction of anitiferro nematic order above TS in BaFe2As2 International conference

    Seiichiro Onari, Hiroshi Kontani

    SNS 2019 

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    Event date: 2019.6

    Language:English   Presentation type:Poster presentation  

    Venue:Tokyo, Japan   Country:Japan  

  31. Quest for the origin of various nematicities in Fe-based superconductors Invited International conference

    Seiichiro Onari

    Research Frontier of Advanced Spectroscopies for Correlated Electron Systems 

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    Event date: 2019.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:Sendai, Japan   Country:Japan  

  32. 非従来型超伝導体における未解決問題: 電荷・軌道揺らぎの重要性 Invited

    大成誠一郎

    日本物理学会 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:九州大学   Country:Japan  

  33. BaFe2As2における強的・反強的ネマティック状態の理論

    大成誠一郎、紺谷浩

    日本物理学会 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  34. 強相関電子系における多様なネマティック秩序 Invited

    大成誠一郎

    つくば-柏-本郷 超伝導かけはしプロジェクト ワークショップ(2) 

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    Event date: 2019.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:物質・材料研究機構 つくば   Country:Japan  

  35. 鉄系超伝導体における強的・反強的ネマティック秩序

    大成誠一郎,紺谷浩

    東京大学物性研究所 短期研究会 「量子多体効果が生み出す液晶的電子状態 」 

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    Event date: 2018.12

    Language:Japanese   Presentation type:Poster presentation  

    Venue:物性研究所 柏   Country:Japan  

  36. Variety of nematic orders in iron-based superconductors

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    Event date: 2018.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  37. CsFe2As2における特異なB2gネマティック揺らぎの解析 Invited

    大成誠一郎

    京都大学基礎物理学研究所研究会 「電子相関が生み出す新規な秩序と超伝導現象:トポロジー、液晶状態、動的現象」 

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    Event date: 2018.5

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学基礎物理学研究所   Country:Japan  

  38. 2軌道ハバードモデルにおける軌道秩序および超伝導状態

    本川昂次朗, 大成誠一郎

    日本物理学会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  39. FeSeのネマティック状態で誘起される新規な軌道秩序状態

    大成誠一郎, 紺谷浩

    日本物理学会 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  40. 鉄系超伝導体における強的・反強的軌道秩序の波数依存性の理論

    大成 誠一郎、紺谷浩

    日本物理学会 

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    Event date: 2017.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  41. 2軌道ハバードモデルにおける軌道揺らぎ

    本川昂次朗, 大成誠一郎

    日本物理学会 

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    Event date: 2017.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  42. 鉄系超伝導体における軌道秩序状態の理論解析

    大成 誠一郎,山川洋一,紺谷浩

    日本物理学会 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  43. 鉄系超伝導体における抵抗率と熱起電力の面内異方性

    大成 誠一郎,紺谷浩

    日本物理学会 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  44. 多軌道系における軌道秩序及び超伝導発現機構 Invited

    大成 誠一郎

    日本物理学会中国四国支部大会 

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    Event date: 2016.7

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  45. 各種鉄系超伝導体の斜方晶相における電子状態理論解析

    大成 誠一郎, 山川 洋一, 紺谷 浩

    日本物理学会 

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    Event date: 2016.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  46. 鉄系超伝導体における軌道秩序:高次電子相間効果 Invited

    大成 誠一郎

    日本化学会中国四国支部大会 

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    Event date: 2015.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  47. 鉄系超伝導体における熱起電力の面内異方性の反転

    大成 誠一郎,山川洋一,紺谷浩

    日本物理学会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  48. 軌道秩序によるFeSeのフェルミ面の変形

    大成 誠一郎,山川洋一,紺谷浩

    日本物理学会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  49. Orbital fluctuations and orders in iron-based superconductors Invited International conference

    大成 誠一郎

    EMN2015 

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    Event date: 2015.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:China  

  50. 鉄系超伝導体における軌道偏極及び輸送現象の面内異方性 Invited

    大成 誠一郎

    多自由度と相関効果が生み出す超伝導の新潮流 ~BCSからBECまで~ 

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    Event date: 2015.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  51. 軌道揺らぎによる鉄系超伝導発現機構の研究 Invited

    大成 誠一郎

    日本物理学会 

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    Event date: 2015.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  52. 鉄系超伝導体における輸送係数の面内異方性

    大成 誠一郎, 紺谷浩

    日本物理学会 

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    Event date: 2015.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  53. 軌道揺らぎによる超伝導発現機構-Migdal-Eliashberg理論を超えて-

    大成誠一郎,山川洋一,紺谷浩

    日本物理学会 

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    Event date: 2014.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東海大学   Country:Japan  

  54. 鉄系超伝導体における軌道揺らぎ理論-相図及び超伝導発現機構- International conference

    大成誠一郎

    日本物理学会 

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    Event date: 2014.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  55. Orbital fluctuation mediated S++ wave state based on the SC-VCΣ method - Impact of vertex correction for the gap equation International conference

    Seiichiro Onari, Hiroshi Kontani

    APS March Meeting 

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    Event date: 2014.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  56. 鉄系超伝導体における軌道揺らぎ及び超伝導発現機構 -バーテックス補正による解析-

    大成 誠一郎

    Workshop: CROSSroads of Users and J-PARC 第9回 「超伝導、磁性とフラストレーション」  

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    Event date: 2013.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:CROSS 東海村   Country:Japan  

  57. Phase diagram and mechanism of superconductivity in iron-based superconductors - Analysis using self-consistent vertex corrections -

    Seiichiro Onari, Hiroshi Kontani

    Novel Superconductors and Super Materials 2013 

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    Event date: 2013.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  58. 鉄系超伝導体における軌道揺らぎ及び超伝導発現機構 -相図の統一的理解を目指して-

    大成誠一郎

    基研研究会「鉄系高温超伝導の物理 ~スピンと軌道の協奏~」 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学 基礎物理学研究所   Country:Japan  

  59. Phase diagram and mechanism of superconductivity in iron-based superconductors International conference

    Seiichiro Onari

    Trends in Theory of Correlated Materials 2013 

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    Event date: 2013.10

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Switzerland  

  60. バーテックス補正による軌道揺らぎ及び超伝導発現機構-鉄系超伝導体における解析-

    大成誠一郎、紺谷浩

    日本物理学会 

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    Event date: 2013.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:徳島大学   Country:Japan  

  61. Orbital fluctuations and superconductivity induced by vertex corrections in iron-based superconductors International conference

    Seiichiro Onari, Hiroshi Kontani

    Strongly Correlated Electron Systems (SCES) 2013 

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    Event date: 2013.8

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  62. Orbital order and fluctuations in iron-based superconductors International conference

    Seiichiro Onari

    Collaborative Conference on Materials Research (CCMR) 2013 

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    Event date: 2013.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Korea, Republic of  

  63. 鉄系超伝導体における超伝導発現機構 -自己エネルギーおよびバーテックス補正の効果

    大成誠一郎、紺谷浩

    日本物理学会 

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    Event date: 2013.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:広島大学   Country:Japan  

  64. Resonance peak of neutron scattering in iron-based superconductors International conference

    Seiichiro Onari, Hiroshi Kontani

    APS March Meeting 

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    Event date: 2013.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  65. Superconductivity induced by the orbital fluctuation in iron-based superconductors International conference

    Seiichiro Onari

    Energy Materials Nanotechnology (EMN2013) 

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    Event date: 2013.1

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:United States  

  66. 鉄系超伝導体における軌道揺らぎ及び超伝導発現機構-バーテックス補正の効果

    大成誠一郎

    多重極限物質科学研究センター研究会 

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    Event date: 2012.12

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:University of Hyogo, Hyogo, Japan   Country:Japan  

  67. Orbital fluctuation and mechanism of superconductivity in iron-base superconductors International conference

    Seiichiro Onari, Hiroshi Kontani

    ISS2012 

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    Event date: 2012.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  68. 鉄系超伝導体における軌道揺らぎおよび超伝導発現機構

    大成誠一郎

    日本物理学会 

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    Event date: 2012.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:横浜国大   Country:Japan  

  69. 鉄系超伝導体における四重極揺らぎ及び超伝導発現機構-自己エネルギーおよびバーテックス補正の効果-

    大成誠一郎

    基研研究会「鉄系高温超伝導の物理 ~スピン・軌道・格子~」 

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    Event date: 2012.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学基礎物理学研究所 湯川記念館パナソニック国際交流ホール   Country:Japan  

  70. 鉄系超伝導体における軌道揺らぎおよび超伝導発現機構

    大成誠一郎

    新学術領域研究「重い電子系の形成と秩序化」ワークショップ 

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    Event date: 2012.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:岩手大学   Country:Japan  

  71. 鉄系超伝導体におけるスピン揺らぎと軌道揺らぎの競合―FLEX近似による解析

    大成誠一郎、紺谷浩

    日本物理学会 

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    Event date: 2012.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:関西学院大学   Country:Japan  

  72. Origin of the variety of superconducting gap structure in iron-based superconductors: competition between orbital and spin fluctuations International conference

    Seiichiro Onari and Hiroshi Kontani

    APS March Meeting 2012 

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    Event date: 2012.2 - 2012.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  73. 鉄系超伝導体における軌道レゾナンス及び中性子散乱

    大成誠一郎, 紺谷浩

    日本物理学会 

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    Event date: 2011.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:富山大   Country:Japan  

  74. 鉄系超伝導体における中性子散乱スペクトル及び軌道レゾナンス

    大成誠一郎、紺谷浩

    京都大学基礎物理学研究所研究会「鉄系高温超伝導の物理」 

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    Event date: 2011.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学 湯川記念館   Country:Japan  

  75. 鉄砒素系超伝導体における軌道レゾナンスの理論

    大成誠一郎,紺谷浩

    日本物理学会 

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    Event date: 2011.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:新潟大学   Country:Japan  

  76. Tunneling conductance in the chiral superconductivity based on a lattice model

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    Event date: 2010.12

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  77. 鉄砒素系超伝導体における中性子散乱スペクトル及び輸送現象

    大成誠一郎、紺谷浩

    TRIP超伝導ワークショップ 「格子と軌道結合」 

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    Event date: 2010.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:東京大学   Country:Japan  

  78. Study of pairing symmetry in iron pnictides based on the multiorbital Hubbard-Holstein model International conference

    ISS2010 

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    Event date: 2010.11

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  79. Analysis of superconductivity based on the Hubbard-Holstein model in iron pnictides

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    Event date: 2010.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  80. Surface density of state of the chiral superconductivity based on a lattice model

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    Event date: 2010.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  81. 鉄系超伝導体におけるペアリング対称性の理論的考察-不純物効果及び中性子散乱

    大成誠一郎

    日本物理学会 

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    Event date: 2010.3

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:岡山大   Country:Japan  

  82. Nonmagnetic impurity effects in iron pnictides International conference

    ISS2009 

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    Event date: 2009.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  83. 鉄砒素系超伝導体におけるトンネルコンダクタンス

    大成誠一郎、田仲由喜夫

    日本物理学会 

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    Event date: 2009.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大   Country:Japan  

  84. 鉄砒素系超伝導体の5軌道モデルにおける不純物効果の理論

    大成誠一郎、紺谷浩

    日本物理学会 

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    Event date: 2009.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本大   Country:Japan  

  85. 多軌道系におけるトンネルスペクトロスコピー

    大成誠一郎、田仲由喜夫

    TRIP 公開シンポジウム 

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    Event date: 2009.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  86. Surface DOS in multi-band model

    ISSP International Workshop on New Developments in Theory of Superconductivity (NDTS) 

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    Event date: 2009.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  87. 鉄ニクタイド系のトンネルスペクトロスコピー

    大成誠一郎、田仲由喜夫

    日本物理学会 

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    Event date: 2009.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:立教大   Country:Japan  

  88. Theory of Tunneling Spectroscopy in LaFeAsO1-xFx International conference

    APS March Meeting 2009 

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    Event date: 2009.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  89. 鉄ニクタイド系化合物における超伝導発現機構

    大成誠一郎

    研究会「鉄ニクタイド物質系における超伝導ペア対称性と超伝導状態」 

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    Event date: 2009.1

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  90. Mechanism of superconductivity and tunneling spectroscopy in LaFeAsO1-xFx International conference

    ISS2008 

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    Event date: 2008.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  91. 鉄砒素系超伝導におけるレゾナンスピーク

    大成誠一郎、紺谷浩

    日本物理学会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  92. 鉄砒素系の超伝導及びトンネルスペクトロスコピー

    大成誠一郎、田仲由喜夫

    日本物理学会 

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    Event date: 2008.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  93. Unconventional pairing in iron arsenide compounds− multiple nesting across multiple Fermi surfaces

    International Workshop on Superconductivity in Diamond and Related Materials(IWSDRM2008) 

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    Event date: 2008.7

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  94. グラフェンにおける内因性スピンホール効果

    大成誠一郎、石川靖人、紺谷浩、井上順一郎

    日本物理学会 

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    Event date: 2008.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  95. Quasi-particle density of state on the surface in the strongly correlated electron systems

    PSM2007 

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    Event date: 2007.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  96. 強相関電子系界面における準粒子状態密度

    大成誠一郎、秦哲也、田仲由喜夫、井上順一郎

    日本物理学会 

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    Event date: 2007.9

    Language:Japanese  

  97. Electronic state of the junction in the strongly correlated electron systems

    SNS2007 

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    Event date: 2007.8

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  98. 三角格子拡張ハバードモデルにおける超伝導対称性

    大成誠一郎、木村裕史、田仲由喜夫

    日本物理学会 

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    Event date: 2007.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  99. 3次元周期的アンダーソンモデルにおけるホール係数の磁場依存性

    日本物理学会 

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    Event date: 2007.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

    大成誠一郎、紺谷浩、田仲由喜夫

  100. Transport Phenomena in CeCoIn5 Close to Quantum Critical Point International conference

    ICM2006 

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    Event date: 2006.11

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  101. Phase diagram of half-filled square lattice for frustrated Hubbard model

    ISS2006 

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    Event date: 2006.10

    Language:English   Presentation type:Poster presentation  

    Country:Japan  

  102. FLEX近似による三角格子拡張ハバードモデルのトリプレット超伝導

    大成誠一郎、木村裕史、田仲由喜夫

    日本物理学会 

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    Event date: 2006.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  103. FLEX近似による3次元周期的アンダーソンモデルの磁場応答

    大成誠一郎、紺谷浩、田仲由喜夫

    日本物理学会 

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    Event date: 2006.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  104. CeCoIn5 における輸送現象の異常な磁場依存性

    大成誠一郎、紺谷浩、田仲由喜夫

    日本物理学会 

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    Event date: 2005.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  105. Superconductivity from a long-range repulsive interaction International conference

    LT24 

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    Event date: 2005.8

    Language:English   Presentation type:Poster presentation  

  106. BaFe<sub>2</sub>As<sub>2</sub>における多段ネマティック秩序の理論:保存近似の適用 International conference

    大成誠一郎, 紺谷浩

    日本物理学会  2019.9.10 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岐阜大学  

  107. CsFe<sub>2</sub>As<sub>2</sub>における特異なB<sub>2g</sub>ネマティック揺らぎの解析 Invited International conference

    大成誠一郎

    京都大学基礎物理学研究所研究会 「電子相関が生み出す新規な秩序と超伝導現象:トポロジー、液晶状態、動的現象」  2018.5.7 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:京都大学基礎物理学研究所  

  108. BaFe<sub>2</sub>As<sub>2</sub>における強的・反強的ネマティック状態の理論 International conference

    大成誠一郎, 紺谷浩

    日本物理学会  2019.3.14 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学  

  109. Theoretical prediction of anitiferro nematic order above T<sub>S</sub> in BaFe<sub>2</sub>As<sub>2</sub>

    Seiichiro Onari, Hiroshi Kontani

    SNS 2019  2019.6.16 

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    Language:English   Presentation type:Poster presentation  

    Venue:Tokyo, Japan  

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Works 1

  1. 超電導の仕組み解明

    2008.8

KAKENHI (Grants-in-Aid for Scientific Research) 7

  1. SU(4)対称性を持つツイスト2層グラフェンにおける超伝導および輸送現象の理論解析

    2023.4 - 2026.3

    学術研究助成基金  基盤研究(C)

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

  2. 多軌道高次多体効果による新規複合揺らぎ理論

    2017.4 - 2022.3

    学術研究助成基金  基盤研究(C)

    大成 誠一郎

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    Authorship:Principal investigator  Grant type:Competitive

  3. Novel cooperative phenomena among charge, spin, and orbital degrees of freedoms in strongly correlated electron systems

    Grant number:15H03687  2015.4 - 2018.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    Hiroshi Kontani

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    Authorship:Coinvestigator(s) 

    In strongly correlated electron systems, impact of vertex corrections (VCs), which describes the higher-order many-body effects, attract increasing attention. Here, we perform the theoretical study of VCs in Fe-based and cuprate superconductors, based on both the diagrammatic method and functional RG method. We revealed that the “electronic nematic states” observed in these strongly correlated systems, originate from the Aslamazov-Larkin VCs. The physical meaning of the Aslamazov-Larkin VCs is the “quantum interference between charge, spin, and orbital fluctuations”, which is found to be very important in various strongly correlated electron systems.

  4. 多軌道強相関電子系の相図及び超伝導発現機構の解明

    2014.4 - 2017.3

    学術研究助成基金  若手研究(B)

    大成 誠一郎

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    Authorship:Principal investigator 

  5. Theoretical study of local electronic states and physical properties in electric-field-induced surface superconductivity

    Grant number:25400373  2013.4 - 2017.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Ichioka Masanori, ONARI Seiichiro, TANAKA Kenta, NABETA Masahiro, Kogan Vladimir, Schmalian Jörg

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Spatial structures of the local superconductivity and the bound electronic state near the surface are theoretically studied based on calculations of the Bogoliubov-de Gennes equation, focusing electric-field-induced surface superconductivity. Especially, in the pair-breaking effect by magnetic fields parallel to the surface, new mechanism by the diamagnetic effect is considered in addition to the paramagnetic effect. From the results, it is clarified that contributions by the sub-band structure and multi-gap superconductivity eminently appear in the magnetic field dependence of the superconductivity.

  6. 鉄ニクタイド系化合物の超伝導ペアリング対称性

    2010.4 - 2013.3

    科学研究費補助金  若手研究(B)

    大成誠一郎

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    Authorship:Principal investigator 

    本研究の目的は、鉄ニクタイド系化合物の超伝導ギャップ関数の対称性および超伝導発現機構を解明することである。近年発見された、鉄ニクタイド系化合物において、反強磁性揺らぎを媒介とした符号反転s波(s+-wave)超伝導の発現が示唆されている。一方で鉄ニクタイド系化合物の超伝導状態は非磁性不純物に対して強く、超伝導転移温度(Tc)の低下が小さいことが実験から明らかにされている。しかし、s+-waveは非磁性不純物に対して弱く実験結果と整合しない。よって本研究において各種物理量を計算し、実験結果と比較することにより、実験結果と整合するギャップ関数および超伝導発現機構を探索する。

  7. ナノヘテロ構造におけるスピン注入とスピン蓄積の理論

    2007.4 - 2011.3

    科学研究費補助金  特定領域研究

    井上順一郎

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    Authorship:Coinvestigator(s) 

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Teaching Experience (On-campus) 29

  1. Mathematical Physics II

    2022

  2. Statistical Physics IV

    2022

  3. Mathematical Physics II

    2021

  4. Statistical Physics IV

    2021

  5. Statistical Physics III

    2021

  6. Colloquium Condensed Matter Theory 4

    2021

  7. Mathematical Physics II

    2020

  8. Statistical Physics IV

    2020

  9. Statistical Physics III

    2020

  10. Special Lecture on Condensed Matter Physics and Biophysics 3

    2020

  11. Colloquium Condensed Matter Theory 4

    2020

  12. 物理学セミナー第1の1

    2018

  13. 統計物理学IV

    2018

  14. 応用物理学演習第3

    2013

  15. 応用物理学演習第1

    2013

  16. 応用物理学実験第3

    2012

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    計算機実験

  17. 応用物理学演習第4

    2012

  18. 応用物理学演習第1

    2012

  19. 応用物理学実験第2

    2012

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    計算機実験

  20. 応用物理学実験第2

    2011

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    計算機実験

  21. 応用物理学実験第3

    2011

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    計算機実験

  22. 応用物理学演習第4

    2011

  23. 応用物理学演習第1

    2011

  24. 応用物理学実験第2

    2010

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    計算機実験

  25. 応用物理学実験第3

    2010

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    計算機実験

  26. 応用物理学実験第2

    2009

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    計算機実験

  27. 応用物理学実験第3

    2009

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    計算機実験

  28. 応用物理学実験第2

    2008

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    計算機実験

  29. 応用物理学実験第3

    2008

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    計算機実験

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Teaching Experience (Off-campus) 1

  1. 統計物理学IV

    Nagoya University)