ID 9923
フルテキストファイル
著者
Sakakibara, Hirofumi Department of Applied Mathematics and Physics, Tottori University / Advanced Mechanical and Electronic System Research Center(AMES), Tottori University / Computational Condensed Matter Physics Laboratory, RIKEN Cluster for Pioneering Research (CPR) 研究者総覧 KAKEN
Usui, Hidetomo Department of Physics and Materials Science, Shimane University
Suzuki, Katsuhiro Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
Kotani, Takao Department of Applied Mathematics and Physics, Tottori University 研究者総覧 KAKEN
Aoki, Hideo National Institute of Advanced Industrial Science and Technology (AIST) / Department of Physics, The University of Tokyo
Kuroki, Kazuhiko Department of Physics, Osaka University
抄録
Effective models are constructed for a newly discovered superconductor (Nd,Sr)NiO2, which has been considered as a possible nickelate analog of the cuprates. Estimation of the effective interaction, which turns out to require a multiorbital model that takes account of all the orbitals involved on the Fermi surface, shows that the effective interactions are significantly larger than in the cuprates. A fluctuation exchange study suggests occurrence of dx2−y2-wave superconductivity, where the transition temperature should be lowered from the cuprates due to the larger interaction.
資料タイプ
学術雑誌論文
ISSN
00319007
EISSN
10797114
掲載誌名
PHYSICAL REVIEW LETTERS
125
7
開始ページ
077003
発行日
2020-08-13
出版者DOI
著者版フラグ
出版社版
著作権表記
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
掲載情報
Sakakibara Hirofumi, Usui Hidetomo, Suzuki Katsuhiro, et al. Model Construction and a Possibility of Cupratelike Pairing in a New d(9) Nickelate Superconductor (Nd,Sr)NiO2. PHYSICAL REVIEW LETTERS. 2020. 125(7). doi:10.1103/PhysRevLett.125.077003
部局名
工学部・工学研究科
言語
英語
Web of Science Key ut
WOS:000558974000007