フルテキストファイル
著者
Sakakibara, Hirofumi Department of Engineering Science, The University of Electro-Communications 研究者総覧 KAKEN
Usui, Hidetomo Department of Applied Physics, The University of Electro-Communication
Kuroki, Kazuhiko Department of Engineering Science, The University of Electro-Communications
Arita, Ryotaro Department of Applied Physics, The University of Tokyo
Aoki, Hideo Department of Physics, The University of Tokyo
抄録
Using the dx2-y2 + dz2 two orbital model of the high Tc cuprates obtained from the first-principle calculation, we show that the material dependence of the Fermi surface shape can be understood by the degree of the mixture between the dx2-y2 and the dz2 orbitals. We explain, through investigating the tightbinding hopping integrals, why some cuprates have square shaped Fermi surface, while others have more rounded ones. From this viewpoint, we explain the experimentally observed correlation between the curvature of the Fermi surface and Tc.
出版者
IOP Publishing Ltd
資料タイプ
会議資料
外部リンク
ISSN・ISBN
17426596
書誌ID
AA12839617
掲載誌名
Journal of physics. Conference series
400
2
開始ページ
022100
発行日
2012
出版者DOI
著者版フラグ
著者版
著作権表記
©2012 IOP Publishing Ltd
掲載情報
H. Sakakibara, H. Usui, K. Kuroki, R. Arita and H. Aoki. Two-orbital view on the origin of the material dependence of Tc in the single-layer cuprates. Journal of physics. Conference series . 2012, 400(2), 022100. 26th International Conference on Low Temperature Physics (LT26)
部局名
工学部・工学研究科
言語
英語