2013 Fiscal Year Final Research Report
Electron correlation and quasiparticle states in d-electron systems studied by high-resolution bulk-sensitive photoelectron spectroscopy
| Project/Area Number |
23740244
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Konan University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| 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 |
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| 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.
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[Journal Article] Bulk nature of layered perovskite iridates beyond the Mott scenario : An approach from bulk sensitive photoemission study2014
Author(s)
A. Yamasaki, S. Tachibana, H. Fujwara, A. Higashiya, A. Irizawa, O. Kirilmaz, M. Sing, H. Yoshida, H. Okabe, M. Isobe, R. Claessen, T. Ishikawa, S. Imada, A. Sekiyama, and S. Suga ほか計27名
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Journal Title
Phys. Rev. B (Rapid Communications)
Volume: 89
Pages: 121111-1-5
DOI
Peer Reviewed
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[Journal Article] Direct k-Space Mapping of the Electronic Structure in an Oxide-Oxide Interface2013
Author(s)
G. Berner, M. Sing, H. Fujiwara, A. Yasui, Y. Saitoh, A. Yamasaki, Y. Nishitani, A. Sekiyama, N. Pavlenko, T. Kopp, C. Richter, J. Mannhart, S. Suga, and R. Claessen
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Journal Title
Phys. Rev. Lett
Volume: 110
Pages: 247601-1-5
DOI
Peer Reviewed
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[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
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Journal Title
J. Phys. Soc. Jpn
Volume: (Supplement) (印刷中)
Peer Reviewed
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