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論文 - 紺谷　浩

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Quasiparticle Interference in Fe-based Superconductors Based on a Five-Orbital Tight-Binding Model 査読有り

Youichi Yamakawa, Hiroshi Kontani

Physical Review B 92 巻頁： 045124 2015年6月

Spin-Fluctuation-Driven Nematic Charge-Density Wave in Cuprate Superconductors: Impact of Aslamazov-Larkin Vertex Corrections

Yamakawa Youichi, Kontani Hiroshi

PHYSICAL REVIEW LETTERS 114 巻 ( 25 ) 頁： 257001 2015年6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

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

PHYSICAL REVIEW B 91 巻 ( 15 ) 頁： 2015 2015年4月

Quantum critical behavior in heavily doped LaFeAsO1-xHx pnictide superconductors analyzed using nuclear magnetic resonance

Sakurai R., Fujiwara N., Kawaguchi N., Yamakawa Y., Kontani H., Iimura S., Matsuishi S., Hosono H.

PHYSICAL REVIEW B 91 巻 ( 6 ) 頁： 064509 2015年2月

Orbital plus Spin Multimode Fluctuation Theory in Iron-based Superconductors

Onari Seiichiro, Kontani Hiroshi

IRON-BASED SUPERCONDUCTIVITY 211 巻頁： 331-376 2015年

Anisotropy of the superconducting gap in the iron-based superconductor BaFe2(As1-xPx)(2)

Yoshida T., Ideta S., Shimojima T., Malaeb W., Shinada K., Suzuki H., Nishi I., Fujimori A., Ishizaka K., Shin S., Nakashima Y., Anzai H., Arita M., Ino A., Namatame H., Taniguchi M., Kumigashira H., Ono K., Kasahara S., Shibauchi T., Terashima T., Matsuda Y., Nakajima M., Uchida S., Tomioka Y., Ito T., Kihou K., Lee C. H., Iyo A., Eisaki H., Ikeda H., Arita R., Saito T., Onari S., Kontani H.

SCIENTIFIC REPORTS 4 巻 2014年12月

Linear Response Theory for Shear Modulus C-66 and Raman Quadrupole Susceptibility: Evidence for Nematic Orbital Fluctuations in Fe-based Superconductors

Kontani Hiroshi, Yamakawa Youichi

PHYSICAL REVIEW LETTERS 113 巻 ( 4 ) 頁： 047001 (5p) 2014年7月

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

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 LaFeAsO1-xHx

Onari Seiichiro, Yamakawa Youichi, Kontani Hiroshi

PHYSICAL REVIEW LETTERS 112 巻 ( 18 ) 頁： 187001 (5p) 2014年5月

NMR Study on a Pnictide Superconductor LaFeAsO1-x H (x) in a H-Overdoped Regime: Revival of Antiferromagnetic Fluctuations

Fujiwara N., Iimura S., Matsuishi S., Hosono H., Yamakawa Y., Kontani H.

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 27 巻 ( 4 ) 頁： 933-936 2014年4月

Microstructural Analysis of Low-cycle Fatigue Damage Process of Sn-Ag-Cu Solder Joint

Kontani Hiroyuki, Kariya Yoshiharu, Fumikura Tomoya

PROCEEDINGS OF THE ASME INTERNATIONAL TECHNICAL CONFERENCE AND EXHIBITION ON PACKAGING AND INTEGRATION OF ELECTRONIC AND PHOTONIC MICROSYSTEMS, 2013, VOL 1 2014年

Infrared anomalous Hall effect in CaxSr1-xRuO3 films

Kim M. -H., Tanaka T., Ellis C. T., Mukherjee A., Acbas G., Ohkubo I., Christen H., Mandrus D., Kontani H., Cerne J.

PHYSICAL REVIEW B 88 巻 ( 15 ) 2013年10月

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

Yusuke Ohno, Masahisa Tsuchiizu, Seiichiro Onari, Hiroshi Kontani

Physical Review Letters 111 巻頁： 057003 2013年9月

記述言語：英語掲載種別：研究論文（学術雑誌）

Motivated by the nematic electronic fluid phase in Sr_{3}Ru_{2}O_{7}, we develop a combined scheme of the renormalization-group method and the random-phase-approximation-type method, and analyze orbital susceptibilities of the (d_{xz},d_{yz})-orbital Hubbard model with high accuracy. It is confirmed that the present model exhibits a ferro-orbital instability near the magnetic or superconducting quantum criticality, due to the Aslamazov-Larkin-type vertex corrections. This mechanism of orbital nematic order presents a natural explanation for the nematic order in Sr_{3}Ru_{2}O_{7}, and is expected to be realized in various multiorbital systems, such as Fe-based superconductors.

Zigzag Chain Structure Transition and Orbital Fluctuations in Ni-Based Superconductors

Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 82 巻 ( 9 ) 2013年9月

Detection of Antiferromagnetic Ordering in Heavily Doped LaFeAsO1-xHx Pnictide Superconductors Using Nuclear-Magnetic-Resonance Techniques

Fujiwara N., Tsutsumi S., Iimura S., Matsuishi S., Hosono H., Yamakawa Y., Kontani H.

PHYSICAL REVIEW LETTERS 111 巻 ( 9 ) 頁： 097002 (4p) 2013年8月

Orbital Nematic Instability in the Two-Orbital Hubbard Model: Renormalization-Group plus Constrained RPA Analysis

Tsuchiizu Masahisa, Ohno Yusuke, Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW LETTERS 111 巻 ( 5 ) 頁： 057003 2013年7月

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

Yamakawa Y., Onari S., Kontani H., Fujiwara N., Iimura S., Hosono H.

PHYSICAL REVIEW B 88 巻 ( 4 ) 2013年7月

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

Saito Tetsuro, Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW B 88 巻 ( 4 ) 2013年7月

Effect of realistic finite-size impurities on T-c in Fe-based superconductors based on the five-orbital tight-binding model

Yamakawa Youichi, Onari Seiichiro, Kontani Hiroshi

PHYSICAL REVIEW B 87 巻 ( 19 ) 2013年5月

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

Ohno Yusuke, Tsuchiizu Masahisa, Onari Seiichiro, Kontani Hiroshi

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 82 巻 ( 1 ) 2013年1月

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