Electron correlation and quasiparticle states in d-electron systems studied by high-resolution bulk-sensitive photoelectron spectroscopy

• Project/Area Number: 23740244
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: Konan University
• Principal Investigator: YAMASAKI Atsushi 甲南大学, 理工学部, 准教授 (50397775)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 光電子分光 / バルク敏感 / 鉄系超伝導体 / d電子系 / モット絶縁体 / スピン軌道相互作用 / 強相関電子系 / ｄ電子系 / 強相関物質 / 5d電子系 / スレーター絶縁体

Research Abstract

Bulk electronic structures in strongly correlated nd (n=3,4,and 5) electron systems have been investigated by high-energy photoelectron spectroscopy with large probing depth. The strong spin-orbit interaction gives a dominant contribution to the physical properties in the 5d electron systems. Even in the well-known "Mott" insulators in 3d and 5d electron systems, for instance Sr2IrO4, it has been revealed that the anti-ferromagnetic correlation effect plays an important role in the insulating states. Meanwhile, the electronic states in metallic d-electron systems, for instance an iron superconductor FeSe, can be simply described as the Fermi liquid.

Research Products

• [Journal Article] Bulk nature of layered perovskite iridates beyond the Mott scenario : An approach from a bulk- sensitive photoemission study (2014)
  • Author(s): A. Yamasaki, H. Fujiwara, M. Sing, A. Sekiyama, and S. Suga(最終著者他22名)
  • Journal Title: Phys. Rev. B Volume: 89 Issue: 12 Pages: 121111-121111
  • DOI: 10.1103/physrevb.89.121111
  • Peer Reviewed / Open Access
• [Journal Article] Spin-Orbit-Coupling-Induced jeff States in Perovskite Iridates Studied by Photoemission Spectroscopy (2014)
  • Author(s): A. Yamasaki, O. Kirilmaz, A. Irizawa, A. Higashiya, T. Muro, H. Fujiwara, F. Pfaff, P. Schriderer, J. Gabel, M. Sing, M. Yabashi, K. Tamasaku, A. Hloslovskyy, H. Okabe, H. Yoshida, M. Isobe, J. Akimitsu, W. Drube, T. Ishikawa, S. Imada, A. Sekiyama, R. Claessen, and S. Suga
  • Journal Title: J. Phys. Soc. Jpn. (Supplement) Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Study of Electronic Structures in Hollandite-type Vanadium Oxide by Soft X-ray Photoelectron Spectroscopy (2014)
  • Author(s): A. Higashiya, A. Yamasaki, S. Imada, A. Sekiyama, T. Muro, Y. Kato, M. Isobe, Y. Ueda, and S. Suga
  • Journal Title: J. Phys. Soc. Jpn. (Supplement) Volume: 印刷中
  • Peer Reviewed
• [Journal Article] Direct k-space mapping of the electronic structure in an oxide-oxide interface (2013)
  • Author(s): G. Berner, M. Sing, H. Fujiwara, J. Mannhart, S. Suga and R. Claessen
  • Journal Title: Phys. Rev. Lett Volume: 110 Issue: 24 Pages: 247601-247601
  • DOI: 10.1103/physrevlett.110.247601
  • Peer Reviewed
• [Journal Article] Electronic structures of the FeSe superconductor studied by high-energy photoelectron spectroscopy (2012)
  • Author(s): A. Yamasaki ほか
  • Journal Title: Journal of Physics : Conference Series Volume: 391 Pages: 0121411-4
  • DOI: 10.1088/1742-6596/391/1/012141
  • Peer Reviewed
• [Journal Article] Bulk-Sensitive Photoemission Spectroscopy of TlFe2Se2 (2012)
  • Author(s): Y. Nishitani, A. Yamasaki ほか10名
  • Journal Title: Journal of Physics: Conference Series Volume: 391 Pages: 0121151-4
  • DOI: 10.1088/1742-6596/391/1/012115
  • Peer Reviewed
• [Journal Article] Spin-Orbit-Coupling-Induced jeff States in Perovskite Iridates Studied by Photoemission Spectroscopy
  • Author(s): A. Yamasaki, O. Kirilmaz, A. Irizawa, A. Higashiya, T. Muro, H. Fujiwara, F. Pfaff, P. Schriderer, J. Gabel, M. Sing, M. Yabashi, K. Tamasaku, A. Hloslovskyy, H. Okabe, H. Yoshida, M. Isobe, J. Akimitsu, W. Drube, T. Ishikawa, S. Imada, A. Sekiyama, R. Claessen, and S. Suga
  • Journal Title: J. Phys. Soc. Jpn Volume: (Supplement) (印刷中)
  • Peer Reviewed
• [Journal Article] Study of Electronic Structures in Hollandite-type Vanadium Oxide by Soft X-ray Photoelectron Spectroscopy
  • Author(s): A. Higashiya, A. Yamasaki, S. Imada, A. Sekiyama, T. Muro, Y. Kato, M. Isobe, Y. Ueda, and S. Suga
  • Journal Title: J. Phys. Soc. Jpn Volume: (Supplement) (印刷中)
  • Peer Reviewed
• [Presentation] ペロブスカイト型イリジウム酸化物のバルク電子状態 (2013)
  • Author(s): 山﨑篤志
  • Organizer: 日本物理学会
  • Place of Presentation: 徳島大学
• [Presentation] Spin-Orbit-Coupling-Induced jeff States in Perovskite Iridates Studied by Photoemission Spectroscopy (2013)
  • Author(s): A. Yamasaki
  • Organizer: 強相関電子系国際会議 (SCES2013)
  • Place of Presentation: 東京大学
• [Presentation] Spin-orbit-couplinginduced j_<eff> states in perovskite iridates studied by photoemission spectroscopy (2013)
  • Author(s): A. Yamasaki
  • Organizer: ドイツ物理学会
  • Place of Presentation: ドイツ Regensburg
• [Presentation] Spin-Orbit-Coupling-Induced jeff States in Perovskite Iridates Studied by Photoemission Spectroscopy (2013)
  • Author(s): A. Yamasaki, O. Kirilmaz, F. Pfaff, M. Sing, A. Hloskovskyy, H. Yoshida, M. Isobe, J. Akimitsu, W. Drube, and R. Claessen
  • Organizer: 強相関電子系国際会議（SCES2013）
  • Place of Presentation: 東京大学
• [Presentation] Spin-orbit-coupling-induced j eff states in perovskite iridates studied by photoemission spectroscopy (2013)
  • Author(s): A. Yamasaki ほか24名
  • Organizer: ドイツ物理学会
  • Place of Presentation: ドイツ Regensburg
• [Presentation] Spin-orbit-couplinginduced jeff states in perovskite iridates studied by photoemission spectroscopy (2012)
  • Author(s): A. Yamasaki
  • Organizer: International Workshop on "Correlated Electrons at Surfaces and Interfaces
  • Place of Presentation: ドイツ Wurzburg
• [Presentation] Bulk-Sensitive Photoemission Study on Sr_2IrO_4 (2012)
  • Author(s): A. Yamasaki
  • Organizer: 電子分光および電子構造の国際会議 (ICESS2012)
  • Place of Presentation: フランス Saint Malo
• [Presentation] Bulk-Sensitive Photoemission Spectroscopy of TlFe_2Se_2 (2012)
  • Author(s): Y. Nishitani
  • Organizer: 電子分光および電子構造の国際会議 (ICESS2012)
  • Place of Presentation: フランス Saint Malo
• [Presentation] TlFe_2Se_2 のバルク敏感光電子分光2 (2012)
  • Author(s): 西谷嘉人
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
• [Presentation] Bulk-Sensitive Photoemission Study on Sr2IrO4 (2012)
  • Author(s): A. Yamasaki ほか17名
  • Organizer: 電子分光および電子構造の国際会議（ICESS2012）
  • Place of Presentation: フランス Saint Malo
• [Presentation] Bulk-Sensitive Photoemission Spectroscopy of TlFe2Se2 (2012)
  • Author(s): Y. Nishitani, A. Yamasaki ほか18名
  • Organizer: 電子分光および電子構造の国際会議（ICESS2012）
  • Place of Presentation: フランス Saint Malo
• [Presentation] Spin-orbit-coupling-induced j eff states in perovskite iridates studied by photoemission spectroscopy (2012)
  • Author(s): A. Yamasaki ほか24名
  • Organizer: International Workshop on "Correlated Electrons at Surfaces and Interfaces"
  • Place of Presentation: ドイツ Wuerzburg
• [Presentation] TlFe2Se2のバルク敏感光電子分光２ (2012)
  • Author(s): 西谷嘉人，山崎篤志ほか１８名
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
• [Presentation] TlFe_2Se_2 のバルク敏感光電子分光 (2011)
  • Author(s): 西谷嘉人
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
• [Presentation] Bulk sensitive photoemission study of FeSe and related compounds (2011)
  • Author(s): A. Yamasaki
  • Organizer: HAXPES 2011
  • Place of Presentation: ドイツ ハンブルク
• [Presentation] Electronic Structures of the FeSe Superconductor Studied by High-Energy Photoelectron Spectroscopy (2011)
  • Author(s): A. Yamasaki
  • Organizer: 強相関電子系国際会議 (SCES2011)
  • Place of Presentation: イギリス ケンブリッジ大学
• [Presentation] Bulk-Sensitive Photoemission Spectroscopy of TlFe_2Se_2 (2011)
  • Author(s): Y. Nishitani
  • Organizer: 強相関電子系国際会議 (SCES2011)
  • Place of Presentation: イギリス ケンブリッジ大学
• [Presentation] Electronic Structures of the FeSe Superconductor Studied by High-Energy Photoelectron Spectroscopy (2011)
  • Author(s): Atsushi Yamasaki ほか19名
  • Organizer: Strongly Correlated Electron Systems 2011
  • Place of Presentation: ケンブリッジ大学（イギリス）
• [Presentation] Bulk sensitive photoemission study of FeSe and related compounds (2011)
  • Author(s): Atsushi Yamasaki ほか20名
  • Organizer: HAXPES 2011
  • Place of Presentation: ハンブルク（ドイツ）
• [Presentation] Bulk-Sensitive Photoemission Spectroscopy of TlFe2Se2 (2011)
  • Author(s): Yoshito Nishitani，Atsushi Yamasaki ほか10名
  • Organizer: Strongly Correlated Electron Systems 2011
  • Place of Presentation: ケンブリッジ大学（イギリス）
• [Presentation] TlFe2Se2のバルク敏感光電子分光 (2011)
  • Author(s): 西谷嘉人，山崎篤志ほか9名
  • Organizer: 日本物理学会
  • Place of Presentation: 富山大学
• [Remarks] 甲南大学電子物性研究室 山﨑研究業績ホームページ
  • URL: http://www.phys.konan-u.ac.jp/?yamasaki/papers.html
• [Remarks] 甲南大学 電子物性研究室 山崎 研究業績
  • URL: http://www.phys.konan-u.ac.jp/~yamasaki/papers.html
• [Remarks] 甲南大学電子物性研究室 山崎 研究業績
  • URL: http://www.phys.konan-u.ac.jp/~yamasaki/papers.html