出版 PUBLICATIONS

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学術論文 Journal Articles

  1. Tetsuhiro Tanabe, Koudai Sugimoto, and Yukinori Ohta
    "Nonequilibrium dynamics in the pump-probe spectroscopy of excitonic insulators"
    Phys. Rev. B 98, 235127 (2018)
  2. N. Katayama, S. Tamura, T. Yamaguchi, K. Sugimoto, K. Iida, T. Matsukawa, A. Hoshikawa, T. Ishigaki, S. Kobayashi, Y. Ohta, and H. Sawa
    "Large entropy change derived from the orbitally assisted three-centered two-electron σ bond formation in a metallic Li0.33VS2"
    Phys. Rev. B 98, 081104(R) (2018)
  3. Koudai Sugimoto, Satoshi Nishimoto, Tatsuya Kaneko, and Yukinori Ohta
    "Strong Coupling Nature of the Excitonic Insulator State in Ta2NiSe5"
    Phys. Rev. Lett. 120, 247602 (2018)
  4. Ryo Fujiuchi, Koudai Sugimoto, and Yukinori Ohta
    "Excitonic Order and Superconductivity in the TwoOrbital Hubbard Model: Variational Cluster Approach"
    J. Phys. Soc. Jpn. 87, 063705 (2018)
  5. T. Yamaguchi, K. Sugimoto, Y. Ohta, Y. Tanaka, and H. Sato
    "Ferromagnetic Peierls insulator state in AMg4Mn6O15 (A = K, Rb, Cs)"
    Phys. Rev. B 97, 161103(R) (2018)
  6. T. Yamaguchi, K. Sugimoto, and Y. Ohta
    "Low-energy excitation spectra in the excitonic phase of cobalt oxides"
    J. Phys. Soc. Jpn. 86, 043701 (2017)
  7. Koudai Sugimoto and Yukinori Ohta
    "Orbital diamagnetic susceptibility in excitonic condensation phase"
    Phys. Rev. B 94, 085111 (2016)
  8. Koudai Sugimoto, Tatsuya Kaneko, and Yukinori Ohta
    "Microscopic quantum interference in excitonic condensation of Ta2NiSe5"
    Phys. Rev. B 93, 041105(R) (2016)
  9. Koudai Sugimoto, Peter Prelovšek, Eiji Kaneshita, and Takami Tohyama
    "Memory function approach to in-plane anisotropic resistivity in the antiferromagnetic phase of iron arsenide superconductors"
    Phys. Rev. B 90, 125157 (2014)
  10. Koudai Sugimoto, Zhi Li, Eiji Kaneshita, Kenji Tsutsui, and Takami Tohyama
    "Spin dynamics and resonant inelastic x-ray scattering in chromium with commensurate spin-density wave order"
    Phys. Rev. B 87, 134418 (2013)
  11. Koudai Sugimoto, Eiji Kaneshita, and Takami Tohyama
    "Origin of In -Plane Anisotropy in Optical Conductivity for Antiferromagnetic Metallic Phase of Iron Pnictides"
    J. Phys. Soc. Jpn. 80, 033706 (2011)

会議録 Proceedings

  1. Tomoki Yamaguchi, Koudai Sugimoto, and Yukinori Ohta
    "Multipole ordering and collective excitations in the excitonic phase of Pr0.5Ca0.5CoO3"
    Physica B 536, 37 (2018)
  2. Koudai Sugimoto, Tatsuya Kaneko, and Yukinori Ohta
    "Coherence Factors and Quantum Interferences in Excitonic Condensation of Ta2NiSe5"
    J. Phys.: Conf. Ser. 807, 112001 (2017)
  3. Koudai Sugimoto, Takami Tohyama, Eiji Kaneshita, and Kenji Tsutsui
    "Optical conductivity of antiferromagnetic metallic chromium: Mean-field calculation for the multi-orbital Hubbard model"
    J. Korean Phys. Soc. 63, 632-635 (2013)
  4. Koudai Sugimoto, Eiji Kaneshita, and Takami Tohyama
    "The anisotropy of optical conductivity derived from the energy splitting in iron arsenides"
    J. Phys.: Conf. Ser. 400, 022113 (2012)
  5. Koudai Sugimoto, Eiji Kaneshi, and Takami Tohyama
    "Parameter Dependence of Optical Conductivity in antiferromagnetic phase of iron pnictides"
    Physica C 471, 666 (2011)

解説記事 Reviews

  1. 太田幸則、金子竜也、杉本高大
    「相関電子系における励起子凝縮の物理の新展開」
    固体物理 第52巻 第3号, pp.119-137 (2017)