このエントリーをはてなブックマークに追加
ID 53418
フルテキストURL
著者
Terashima, Kensei Graduate School of Natural Science and Technology and Research Laboratory for Surface Science, Okayama University
Sonoyama, Junki Graduate School of Natural Science and Technology and Research Laboratory for Surface Science, Okayama University
Wakita, Takanori Graduate School of Natural Science and Technology and Research Laboratory for Surface Science, Okayama University
Sunagawa, Masanori Graduate School of Natural Science and Technology and Research Laboratory for Surface Science, Okayama University
Ono, Kanta High Energy Accelerator Research Organization (KEK), Photon Factory
Kumigashira, Hiroshi High Energy Accelerator Research Organization (KEK), Photon Factory
Muro, Takayuki Japan Synchrtron Radiation Research Institute (JASRI)/SPring-8
Nagao, Masanori Center for Crystal Science and Technology, University of Yamanashi
Watauchi, Satoshi Center for Crystal Science and Technology, University of Yamanashi
Tanaka, Isao Center for Crystal Science and Technology, University of Yamanashi
Okazaki, Hiroyuki National Institute for Materials Science
Takano, Yoshihiko National Institute for Materials Science
Miura, Osuke Department of Electrical and Electronic Engineering, Tokyo Metropolitan University
Mizuguchi, Yoshikazu Department of Electrical and Electronic Engineering, Tokyo Metropolitan University
Usui, Hidetomo Department of Physics, Osaka University
Suzuki, Katsuhiro Department of Physics, Osaka University
Kuroki, Kazuhiko Department of Physics, Osaka University
Muraoka, Yuji Graduate School of Natural Science and Technology and Research Laboratory for Surface Science, Okayama University
Yokoya, Takayoshi 1Graduate School of Natural Science and Technology and Research Laboratory for Surface Science
抄録
The electronic structure of nearly optimally doped novel superconductor LaO1−xFxBiS2(x = 0.46) was investigated using angle-resolved photoemission spectroscopy (ARPES). We clearly observed band dispersions from 2 to 6 eV binding energy and near the Fermi level (EF), which are well reproduced by first-principles calculations when the spin-orbit coupling is taken into account. The ARPES intensity map near EF shows a squarelike distribution around the (Z) point in addition to electronlike Fermi-surface (FS) sheets around the X(R) point, indicating that FS of LaO0.54F0.46BiS2 is in close proximity to the theoretically predicted topological change.
発行日
2014-12-22
出版物タイトル
Physical Review B
90巻
22号
出版者
The American Physical Society
ISSN
1098-0121
資料タイプ
学術雑誌論文
オフィシャル URL
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.220512
言語
English
著作権者
©2014 American Physical Society
論文のバージョン
publisher
査読
有り
DOI
Web of Sience KeyUT