研究者詳細 - 大成　誠一郎

論文 - 大成　誠一郎

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Giant impurity effects on charge loop current order states in kagome metals 査読有り

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

Physical Review B 111 巻頁： 075161_1 - 075161_10 2025年2月

Robust T -linear resistivity due to SU(4) valley and spin fluctuation mechanism in magic-angle twisted bilayer graphene 査読有り

Inoue D., Onari S., Kontani H.

Physical Review B 109 巻 ( 20 ) 2024年5月

記述言語：英語出版者・発行元：Physical Review B

In the magic angle twisted bilayer graphene (MATBG), non-Fermi liquidlike transport phenomena are universally observed. To understand their origin, we perform the self-consistent analysis of the self-energy due to SU(4) valley + spin fluctuations induced by the electron-electron correlation. In the SU(4) fluctuation mechanism, the 15 channels of fluctuations contribute additively to the self-energy. Therefore, the SU(4) fluctuation mechanism gives much higher electrical resistance than the spin fluctuation mechanism. By the same reason, SU(4) fluctuations of intermediate strength provide T-linear resistivity down to ∼1K. Interestingly, the T-linear resistivity is robustly realized for a wide range of electron filling, even away from the van Hove filling. This study provides a strong evidence for the importance of electron-electron correlation in MATBG.

DOI： 10.1103/PhysRevB.109.205102

Scopus

Real-Space Loop Current Pattern in Time-Reversal-Symmetry Breaking Phasein Kagome Metals 査読有り

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

Journal of the Physical Society of Japan 93 巻頁： 033704_1 - 033704_5 2024年3月

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 査読有り

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

Physical Review B 109 巻 ( 4 ) 頁： L041110_1 - L041110_6 2024年1月

Three-dimensional bond-order instability in infinite-layer nickelates due to nonlocal quantum interference 査読有り

Seiichiro Onari and Hiroshi Kontani

Physical Review B 108 巻頁： L241119_1 - L241119_6 2023年12月

Rigorous formalism for unconventional symmetry breaking in Fermi liquid theory and its application to nematicity in FeSe 査読有り

107 巻 ( 3 ) 頁： 035137_1 - 035137_16 2023年1月

Unconventional density waves and superconductivities in Fe-based superconductors and other strongly correlated electron systems 招待有り査読有り

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

Advances in Physics 107 巻 ( 3 ) 頁： 355 - 443 2023年1月

Correlation-driven electronic nematicity in the Dirac semimetal BaNiS2 査読有り

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 119 巻頁： e2212730119_1 - e2212730119_8 2022年12月

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― 招待有り査読有り

大成誠一郎、紺谷浩

固体物理 57 巻 ( 10 ) 頁： 571 - 580 2022年10月

Diverse Exotic Orders and Fermiology in Fe-Based Superconductors: A Unified Mechanism for Bg/Bg Nematicity in FeSe/(Cs,Rb)Fe2As2 and Smectic Order in BaFe2As2 招待有り査読有り

Frontiers in Physics 10 巻頁： 915619_1 - 915619_15 2022年7月

Mechanism of exotic density-wave and beyond-Migdal unconventional superconductivity in kagome metal AV3Sb5 (A = K, Rb, Cs). 査読有り

Tazai R, Yamakawa Y, Onari S, Kontani H

Science advances 8 巻 ( 13 ) 頁： eabl4108 2022年4月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：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

Scopus

PubMed

金属電子系における新規な自発的対称性の破れ査読有り

田財里奈、大成誠一郎、紺谷浩

日本物理学会誌 77 巻 ( 3 ) 頁： 145 - 154 2022年3月

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

Physical review letters 128 巻 ( 6 ) 頁： 066401 2022年2月

Discovery of mesoscopic nematicity wave in iron-based superconductors 査読有り国際共著

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

Science 373 巻 ( 6559 ) 頁： 1122 - 1125 2021年9月

Unconventional orbital charge density wave mechanism in the transition metal dichalcogenide 1T-TaS₂ 査読有り

Toru Hirata, Youichi Yamakawa, Seiichiro Onari, Hiroshi Kontani

Physical Review Research 3 巻頁： L032053_1 - L032053_6 2021年8月

Development of Spin Fluctuations under the Presence of d-wave Bond Order in Cuprate Superconductors 査読有り

Ando Satoshi, Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

Journal of the Physical Society of Japan 90 巻 ( 6 ) 頁： 63704 - 63704 2021年6月

Electronic and crystal structures ofLnFeAsO1-xHx(Ln= 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 33 巻頁： 255603_1 - 255603_10 2021年4月

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 33 巻頁： 255602_1 - 255602_11 2021年4月

Odd-parity spin-loop-current order mediated by transverse spin fluctuations in cuprates and related electron systems 査読有り

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

Physical Review Research 3 巻頁： 013127_1 - 013127_12 2021年2月

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 査読有り

Kawaguchi Kouki, Onari Seiichiro, Kontani Hiroshi

Journal of the Physical Society of Japan 89 巻 ( 12 ) 頁： 124704_1-124704_9 2020年12月

Hidden antiferronematic order in Fe-based superconductor BaFe2As2 and NaFeAs above Ts 査読有り

Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW RESEARCH 2 巻 ( 4 ) 2020年10月

Doping effects on electronic states in electron-doped FeSe: Impact of self-energy and vertex corrections 査読有り

Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW B 102 巻 ( 8 ) 2020年8月

Superconductivity in 5d transition metal Laves phase SrIr2 査読有り

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

JOURNAL OF PHYSICS-CONDENSED MATTER 32 巻 ( 17 ) 2020年4月

Origin of diverse nematic orders in Fe-based superconductors: 45 degrees rotated nematicity in AFe₂As₂ (A=Cs, Rb) 査読有り

Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW B 100 巻 ( 2 ) 2019年7月

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 88 巻 ( 7 ) 2019年7月

Paramagnetic Pair-Breaking in Spin-Triplet Superconductors with Spin-Orbit Coupling: Application to Sr₂RuO₄ 査読有り

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

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 88 巻 ( 6 ) 頁： 064707 2019年6月

Local NMR relaxation rates T1-1 and T2-1 depending on the d-vector symmetry in the vortex state of chiral and helical p-wave superconductors 査読有り

Kenta K. Tanaka, Masanori Ichioka, Seiichiro Onari

Physical Review B 97 巻頁： 134507 2018年4月

Orbital Order in Two-Orbital Hubbard Model 査読有り

Honkawa Kojiro, Onari Seiichiro

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 87 巻 ( 3 ) 2018年3月

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) 969 巻 2018年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：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

Web of Science

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 96 巻 ( 9 ) 2017年9月

Pair breaking of multigap superconductivity under parallel magnetic fields in the electric-field-induced surface metallic state 査読有り

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

PHYSICAL REVIEW B 96 巻 ( 9 ) 2017年9月

Electronic structures and spin states of BaFe2As2 and SrFe2As2 probed by x-ray emission spectroscopy at Fe and As K-absorption edges 査読有り

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 96 巻 ( 8 ) 2017年8月

Spin-polarized local density of states in the vortex state of helical p-wave superconductors 査読有り

Tanaka Kenta K., Ichioka Masanori, Onari Seiichiro

PHYSICAL REVIEW B 95 巻 ( 13 ) 2017年4月

Paramagnetic and diamagnetic pair-breaking effect in electric-field-induced surface superconductivity under parallel magnetic fields 査読有り

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

Journal of Physics: Conference Series 871 巻頁： 012001_1-012001_6 2017年

Spin-polarized local density of states around vortex in helical p-wave superconductors 査読有り

Kenta K. Tanaka, Masanori Ichioka, and Seiichiro Onari

Journal of Physics: Conference Series 871 巻頁： 012024_1-012024_7 2017年

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) 査読有り

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

SCIENTIFIC REPORTS 6 巻 2016年12月

Pair-breaking effects by parallel magnetic field in electric-field-induced surface superconductivity 査読有り

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

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 530 巻頁： 8-10 2016年11月

Effects of vorticity and impurity on NMR relaxation rate in chiral p-wave superconductors 査読有り

Tanaka Kenta K., Ichioka Masanori, Onari Seiichiro

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 530 巻頁： 62-64 2016年11月

Nematicity and Magnetism in FeSe and Other Families of Fe-Based Superconductors 査読有り

Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW X 6 巻 ( 2 ) 2016年6月

Sign-Reversing Orbital Polarization in the Nematic Phase of FeSe due to the C-2 Symmetry Breaking in the Self-Energy 査読有り

Onari Seiichiro, Yamakawa Youichi, Kontani Hiroshi

PHYSICAL REVIEW LETTERS 116 巻 ( 22 ) 2016年6月

Site-selective NMR for odd-frequency Cooper pairs around vortex in chiral p-wave superconductors 査読有り

Tanaka Kenta K., Ichioka Masanori, Onari Seiichiro

PHYSICAL REVIEW B 93 巻 ( 9 ) 2016年3月

Revisiting orbital-fluctuation-mediated superconductivity in LiFeAs: Nontrivial spin-orbit interaction effects on the band structure and superconducting gap function 査読有り

Saito Tetsuro, Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW B 92 巻 ( 13 ) 2015年10月

Superconductivity in MgPtSi: An orthorhombic variant of MgB2 査読有り

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

PHYSICAL REVIEW B 91 巻 ( 17 ) 2015年5月

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

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

PHYSICAL REVIEW B 91 巻 ( 15 ) 2015年4月

Eilenberger theory for nuclear magnetic relaxation rate in superconducting vortex lattice state 査読有り

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

PHYSICAL REVIEW B 91 巻 ( 1 ) 2015年1月

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

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

PHYSICAL REVIEW B 90 巻 ( 3 ) 2014年7月

High-T_c Superconductivity near the Anion Height Instability in Fe-Based Superconductors: Analysis of LaFeAsO_1-xH_x 査読有り

Seiichiro Onari, Youichi Yamakawa, and Hiroshi Kontani

Physical Review Letters 112 巻頁： 187001_1-187001_5 2014年

Effect of realistic finite-size impurities on T_c in Fe-based superconductors based on the five-orbital tight-binding model 査読有り

Youichi Yamakawa, Seiichiro Onari and Hiroshi Kontani

Physical Review B 87 巻頁： 195121_1- 195121_10 2013年

Spin-Fluctuation-Driven Orbital Nematic Order in Ru-Oxides: Self-Consistent Vertex Correction Analysis for Two-Orbital Model 査読有り

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

Journal of the Physical Society of Japan 82 巻頁： 013707_1-013707_4 2013年

Superconducting Pairing Symmetry on the Extended Hubbard Model in the Presence of the Rashba-Type Spin-Orbit Coupling 査読有り

Keisuke Shigeta, Seiichiro Onari, and Yukio Tanaka

Journal of the Physical Society of Japan 82 巻頁： 014702_1-014702_9 2013年

鉄系超伝導体における「軌道の物理」の新展開査読有り

大成　誠一郎, 紺谷　浩

日本物理学会誌 68 巻 ( 4 ) 頁： 231-235 2013年

Orbital Nematic Instability in Two-Orbital Hubbard Model: Renormalization-Group + Constrained RPA Analysis 査読有り

Masahisa Tsuchiizu, Yusuke Ohno, Seiichiro Onari, Hiroshi Kontani

Physical Review Letters 111 巻頁： 057003_1-057003_5 2013年

Zigzag chain structure transition and orbital fluctuations in Ni-based superconductors 査読有り

Youichi Yamakawa, Seiichiro Onari, Hiroshi Kontani

Journal of the Physical Society of Japan 82 巻頁： 094704_1-094704_6 2013年

Nodal gap structure in Fe-based superconductors due to the competition between orbital and spin fluctuations 査読有り

Tetsuro Saito, Seiichiro Onari, Hiroshi Kontani

Physical Review B 88 巻頁： 045115_1- 045115_11 2013年

Study of phase diagram and superconducting states in LaFeAsO_1-xH_x based on the multiorbital extended Hubbard model 査読有り

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

Physical Review B 88 巻頁： 041106(R)_1- 041106(R)_5 2013年

Possible Odd-Frequency Pairing in Quasi-One-Dimensional Organic Superconductors (TMTSF)₂X 査読有り

Keisuke Shigeta, Seiichiro Onari, and Yukio Tanaka

Journal of the Physical Society of Japan 82 巻頁： 104702_1-104702_5 2013年

Superconductivity in Ca_1-xLa_xFeAs₂: A Novel 112-Type Iron Pnictide with Arsenic Zigzag Bonds 査読有り

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 82 巻頁： 123702_1-123702_4 2013年

Phase diagram and superconducting states in LaFeAsO_1-xH_x based on the multiorbital extended Hubbard model 査読有り

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

Physical Review B 88 巻頁： 041106(R)_1- 041106(R)_5 2013年

Non-Fermi-liquid transport phenomena and superconductivity driven by orbital fluctuations in iron pnictides: Analysis by fluctuation-exchange approximation 査読有り

Seiichiro Onari and Hiroshi Kontani

Physical Review B 85 巻頁： 134507_1-134507_6 2012年

Orbital fluctuation theory in iron-based superconductors: s₊₊-wave superconductivity, structure transition, and impurity-induced nematic order 査読有り

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

Solid State Communications 152 巻 ( 8 ) 頁： 718-727 2012年

Symmetry of superconducting pairing state in a staggered field 査読有り

Keisuke Shigeta, Seiichiro Onari, and Yukio Tanaka

Physical Review B 85 巻頁： 224509_1-224509_13 2012年

Self-Consistent Vertex Correction Analysis for Iron-Based Superconductors: Mechanism of Coulomb-Interaction-Driven Orbital Fluctuations 査読有り

Seiichiro Onari and Hiroshi Kontani

Physical Review Letters 109 巻頁： 137001_1-137001_5 2012年

Effect of inelastic scattering on the nuclear magnetic relaxation rate 1/T₁T in iron-based superconductors 査読有り

Youichi Yamakawa, Seiichiro Onari and Hiroshi Kontani

Superconductor Science and Technology 25 巻頁： 084006_1-084006_9 2012年

Observation of the hole state symmetry of MgB₂ by inelastic scattering of fast electrons accompanied by boron K-shell excitation 査読有り

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

Journal of Applied Physics 112 巻頁： 113920_1-113920_5 2012年

Emergence of fully gapped s₊₊-wave and nodal d-wave states mediated by orbital and spin fluctuations in a ten-orbital model of KFe₂Se₂ 査読有り

Tetsuro Saito, Seiichiro Onari, and Hiroshi Kontani

Physical Review B 83 巻頁： 140512-1-140512-4(R) 2011年

Competition of pairing symmetries and a mechanism for Berezinskii pairing in quasi-one-dimensional systems 査読有り

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

Physical Review B 83 巻頁： 140509_1-140509_4(R) 2011年

Theory of the beta-Type Organic Superconductivity under Uniaxial Compression 査読有り

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

Journal of the Physical Society of Japan 80 巻頁： 094704_1-094704_8 2011年

Origin of orthorhombic transition, magnetic transition, and shear-modulus softening in iron pnictide superconductors: Analysis based on the orbital fluctuations theory 査読有り

Hiroshi Kontani, Tetsuro Saito, and Seiichiro Onari

Physical Review B 84 巻頁： 024528_1-024528_17 2011年

Neutron inelastic scattering peak by dissipationless mechanism in the s₊₊-wave state in iron-based superconductors 査読有り

Seiichiro Onari and Hiroshi Kontani

Physical Review B 84 巻頁： 144518_1-144518_9 2011年

Study of non-Fermi-liquid-like state and pairing symmetry in iron pnictides based on the multiorbital Hubbard-Holstein model 査読有り

Seiichiro Onari and Hiroshi Kontani

Physica C 471 巻頁： 670-674 2011年

Structure of neutron-scattering peaks in both s₊₊-wave and s_±-wave states of an iron pnictide superconductor 査読有り

Seiichiro Onari, Hiroshi Kontani, and Masatoshi Sato

Physical Review B 81 巻頁： 060504-1-060504-4(R) 2010年4月

Spin Hall effect in a curved graphene with spin-orbit interaction 査読有り

Takashi Kato, Seiichiro Onari, Jun-ichiro Inoue

Physica E 42 巻頁： 729-731 2010年

Orbital fluctuation theory in iron pnictides: Effects of As-Fe-As bond angle, isotope substitution, and Z²-orbital pocket on superconductivity 査読有り

Tetsuro Saito, Seiichiro Onari, and Hiroshi Kontani

Physical Review B 82 巻頁： 144510-1-144510-10 2010年

Nonmagnetic impurity effects and neutron scattering spectrum in iron pnictides 査読有り

Seiichiro Onari, Hiroshi Kontani

Physica C 470 巻頁： 1007-1009 2010年

Orbital-Fluctuation-Mediated Superconductivity in Iron Pnictides: Analysis of the Five-Orbital Hubbard-Holstein Model 査読有り

Hiroshi Kontani, Seiichiro Onari

Physical Review Letters 104 巻頁： 157001-1-157001-4 2010年

Superconductivity of beta-type salts under uniaxial compression 査読有り

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

Physica B 405 巻頁： S262–S264 2010年

Pnictogen height as a switch between high-Tc nodeless and low-Tc nodal pairings in the iron-based superconductors 査読有り

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

Physica C 470 巻頁： S416-S417 2010年

Density of state in the odd-frequency superconducting state in a quasi-one-dimensional system 査読有り

Keisuke Shigeta, Seiichiro Onari, Keiji Yada and Yukio Tanaka

Physica C 470 巻頁： S959-S961 2010年

Theory of Josephson Effect in Strongly Correlated Electron Systems 査読有り

Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

Physica C 470 巻頁： S884-S885 2010年

Theory of odd-frequency pairings on a quasi-one-dimensional lattice in the Hubbard model 査読有り

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

Physical Review B 79 巻頁： 174507-1-174507-6 2009年

Violation of Anderson's Theorem for the Sign-Reversing s-Wave State of Iron-Pnictide Superconductors 査読有り

Seiichiro Onari, Hiroshi Kontani

Physical Review Letters 103 巻頁： 177001-1-177001-4 2009年

Electrically controlled superconducting states at the heterointerface SrTiO₃/LaAlO₃ 査読有り

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

Physical Review B 80 巻頁： 140509-1-140509-4(R) 2009年

Unconventional pairing originating from disconnected Fermi surfaces in the iron-based superconductor 査読有り

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

New Journal of Physics 11 巻頁： 025017_1-8 2009年

Odd-frequency pairings in a non-centrosymmetric system 査読有り

Keiji Yada, Seiichiro Onari, and Yukio Tanaka

Physica C 469 巻頁： 991-994 2009年

Odd-frequency superconductivity on quasi-one-dimensional triangular lattice in the Hubbard model 査読有り

Keisuke Shigeta, Seiichiro Onari, Keiji Yada, Yukio Tanaka

Physica C 469 巻頁： 988-990 2009年

Superconductivity under uniaxial compression in beta-(BDA-TTP) salts 査読有り

Takeo Suzuki, Seiichiro Onari, Hiroshi Ito, Yukio Tanaka

Physica C 469 巻頁： 979-981 2009年

Theory of tunneling spectroscopy in LaFeAsO_1-xF_x 査読有り

Seiichiro Onari, Yukio Tanaka

Physica C 469 巻頁： 912-914 2009年

Pnictogen height as a possible switch between high-Tc nodeless and low-Tc nodal pairings in the iron-based superconductors 査読有り

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

Physical Review B 79 巻頁： 224511-1-224511-16 2009年

Surface density of states of s_+-wave Cooper pairs in a two-band superconductor model 査読有り

Seiichiro Onari and Yukio Tanaka

Physical Review B 79 巻頁： 174526-1-174526-6 2009年

Unified origin for superconductivity,magnetism, and large thermopower in Na_xCoO₂ 査読有り

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

Journal of Physics and Chemistry of Solids 69 巻頁： 3360-3364 2008年

Diagonalization Study on the extended Hubbard model in an anisotropic triangular lattice 査読有り

Ken Kanada, Tsutomu Watanabe, Seiichiro Onari and Yukio Tanaka

Journal of Physics and Chemistry of Solids 69 巻頁： 3334-3336 2008年

Odd-Frequency superconductivity in the 2D extended Hubbard model 査読有り

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

Journal of Physics and Chemistry of Solids 69 巻頁： 3321-3323 2008年

Spin-triplet superconductivity induced by off-site Coulomb interaction in a triangular lattice 査読有り

Hiroshi Kimura, Seiichiro Onari and Yukio Tanaka

Journal of Physics and Chemistry of Solids 69 巻頁： 3310-3312 2008年

Electronic state on the surface in the strongly correlated electron systems 査読有り

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

Journal of Physics and Chemistry of Solids 69 巻頁： 3307-3309 2008年

Odd-frequency superconductivity on the Hubbard model using the FLEX approximation 査読有り

Yuichiro Shimokaji, Seiichiro Onari, Yukio Tanaka and Kazumasa Miyake

Journal of Physics and Chemistry of Solids 69 巻頁： 3280-3282 2008年

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

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

Physical Review B 78 巻頁： 172506-1- 172506-4 2008年

Intrinsic spin Hall effect in graphene: Numerical calculations in a multiorbital model 査読有り

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

Physical Review B 78 巻頁： 121403-1-121403-4 (R) 2008年

Unconventional Pairing Originating from the Disconnected Fermi Surfaces of Superconducting LaFeAsO_1-xF_x 査読有り

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

Physical Review Letters 101 巻頁： 087004-1-087004-4 2008年

Theory of Fulde-Ferrell-Larkin-Ovchinnikov state of superconductors with and without inversion symmetry: Hubbard model approach 査読有り

Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

Journal of the Physical Society of Japan 77 巻頁： 064711-1-064711-8 2008年

Unified origin for superconductivity and 3D magnetism in Na_xCoO₂ 査読有り

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

Physica B 403 巻頁： 1151-1153 2008年

Spin-dependent Mass Enhancement under a Magnetic Field in the Periodic Anderson Model 査読有り

Seiichiro Onari, Hiroshi Kontani, and Yukio Tanaka

Journal of the Physical Society of Japan 77 巻頁： 023703-1-023703-4 2008年

Unconventional Superconductivity Originating from Disconnected Fermi Surfaces in the Iron-Based Oxypnictide 査読有り

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

Journal of the Physical Society of Japan, Supplement 77 巻頁： 96-98 2008年

Fluctuation exchange study on the double chain superconductor Pr₂Ba₄Cu₇O_15-δ 査読有り

Tsuguhito Nakano, Kazuhiko Kuroki, and Seiichiro Onari

Physica B 403 巻頁： 1159-1161 2008年

Anomalous transport phenomena in CeCoIn₅ close to quantum critical point 査読有り

Seiichiro Onari, Hiroshi Kontani, Yukio Tanaka

Journal of Magnetism and Magnetic Materials 310 巻頁： 359-361 2007年

Enhanced triplet superconductivity in noncentrosymmetric systems 査読有り

Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

Physical Review B 75 巻頁： 172511-1-172511-4 2007年

Variational Monte Carlo study of pairing symmetry in Sr₂RuO₄ 査読有り

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

Physica C 463-465 巻頁： 134-137 2007年

Quasiparticle density of states in high-Tc superconductors in the superconducting state 査読有り

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

Physica C 463-465 巻頁： 123-125 2007年

Phase diagram of half-filled square lattice for frustrated Hubbard model 査読有り

Seiichiro Onari, Hisatoshi Yokoyama, Yukio Tanaka

Physica C 463-465 巻頁： 120-122 2007年

Superconductivity due to spin fluctuations originating from multiple Fermi surfaces in the double chain superconductor Pr₂Ba₄Cu₇O_15-δ 査読有り

Tsuguhito Nakano, Kazuhiko Kuroki and Seiichiro Onari

Physical Review B 76 巻頁： 014515-1-014515-7 2007年

Local density of states at zigzag edges of carbon nanotubes and graphene 査読有り

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

Physical Review B 75 巻頁： 235430-1-235430-7 2007年

Unified Origin for the 3D Magnetism and Superconductivity in Na_xCoO₂ 査読有り

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

Physical Review Letters 98 巻頁： 136401-1-136401-4 2007年

Theory of Superconductivity of Carbon Nanotubes and Graphene 査読有り

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

Journal of the Physical Society of Japan 76 巻頁： 033702-1-033702-4 2007年

Superconductivity from a long-range interaction: a crossover between the electron gas and the lattice model 査読有り

Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

Physical Review B 73 巻頁： 014526-1-014526-5 2006年

Transport phenomena in a three-dimensional system close to the magnetic quantum critical point: The conserving approximation with current vertex corrections 査読有り

Seiichiro Onari, Hiroshi Kontani, Yukio Tanaka

Physical Review B 73 巻頁： 224434-1-224434-10 2006年

Extended s-wave pairing originating from the a_1g band in Na_xCoO₂yH₂O: Single-band U-V model with fluctuation exchange method 査読有り

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

Physical Review B 73 巻頁： 184503-1-184503-6 2006年

Spin-Triplet Superconductivity Induced by Charge Fluctuations in Extended Hubbard Model 査読有り

Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

Journal of the Physical Society of Japan 74 巻 ( 9 ) 頁： 2579-2585 2005年9月

Phase diagram of the two-dimensional extended Hubbard model: pairing from charge and spin fluctuations 査読有り

Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

Physica B 359-361 巻頁： 518-520 2005年

Off-site repulsion-induced triplet pairing: DCA and FLEX study for Sr₂RuO₄ 査読有り

Ryotaro Arita, Seiichiro Onari, Kazuhiko Kuroki, Hideo Aoki

Physica B 359-361 巻頁： 584-586 2005年

Off-site repulsion-induced triplet superconductivity: A possibility for chiral p_xy-wave pairing in Sr₂RuO₄ 査読有り

Ryotaro Arita, Seiichiro Onari, Kazuhiko Kuroki, Hideo Aoki

Physical Review Letters 92 巻頁： 247006-1-247006-4 2004年

Phase diagram of the two-dimensional extended Hubbard model: Phase transitions between different pairing symmetries when charge and spin fluctuations coexist 査読有り

Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

Physical Review B 70 巻頁： 094523-1-094523-6 2004年

Superconductivity in repulsive electron systems with three-dimensional disconnected Fermi surfaces 査読有り

Seiichiro Onari, Ryotaro Arita, Kazuhiko Kuroki, Hideo Aoki

Physical Review B 68 巻頁： 024525-1-024525-7 2003年

Effect of inter-band nesting on superconductivity in stacked honeycomb lattices 査読有り

Seiichiro Onari, Kazuhiko Kuroki, Ryotaro Arita and Hideo Aoki

Physica B 329 巻頁： 1437-1439 2003年

Superconductivity induced by interband nesting in the three-dimensional honeycomb lattice 査読有り

Seiichiro Onari, Kazuhiko Kuroki, Ryotaro Arita, Hideo Aoki

Physical Review B 65 巻頁： 184525-1-184525-6 2002年

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