| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2019-09-19 |
| タイトル |
|
|
タイトル |
Two-Orbital Model Explains the Higher Transition Temperature of the Single-Layer Hg-Cuprate Superconductor Compared to That of the La-Cuprate Superconductor |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ |
journal article |
| 著者 |
Sakakibara, Hirofumi
Usui, Hidetomo
Kuroki, Kazuhiko
Arita, Ryotaro
Aoki, Hideo
|
| 著者所属（英） |
|
|
言語 |
en |
|
値 |
Department of Applied Physics and Chemistry, The University of Electro-Communications |
| 著者所属（英） |
|
|
言語 |
en |
|
値 |
Department of Applied Physics and Chemistry, The University of Electro-Communications |
| 著者所属（英） |
|
|
言語 |
en |
|
値 |
Department of Applied Physics and Chemistry, The University of Electro-Communications / JST, TRIP |
| 著者所属（英） |
|
|
言語 |
en |
|
値 |
Department of Applied Physics, The University of Tokyo / JST, TRIP / JST, CREST |
| 著者所属（英） |
|
|
言語 |
en |
|
値 |
Department of Physics, The University of Tokyo / JST, TRIP |
| 抄録 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
In order to explore the reason why the single-layered cuprates, La2−x(Sr/Ba)xCuO4 (Tc≃40 K) and HgBa2CuO4+δ (Tc≃90 K) have such a significant difference in Tc, we study a two-orbital model that incorporates the dz2 orbital on top of the dx2−y2 orbital. It is found, with the fluctuation exchange approximation, that the dz2 orbital contribution to the Fermi surface, which is stronger in the La system, works against d-wave superconductivity, thereby dominating over the effect of the Fermi surface shape. The result resolves the long-standing contradiction between the theoretical results on Hubbard-type models and the experimental material dependence of Tc in the cuprates. |
| 書誌情報 |
Physical review letters
en : Physical review letters
巻 105,
p. 057003,
発行日 2010-07-30
|
| 出版者 |
|
|
出版者 |
American Physical Society |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
00319007 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00773679 |
| DOI |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1103/PhysRevLett.105.057003 |
| 権利 |
|
|
権利情報 |
©2010 American Physical Society |
| 情報源 |
|
|
|
関連名称 |
H. Sakakibara, H. Usui, K. Kuroki, R. Arita and H. Aoki. Two-Orbital Model Explains the Higher Transition Temperature of the Single-Layer Hg-Cuprate Superconductor Compared to That of the La-Cuprate Superconductor. Physical review letters. 2010, 105, 0570 |
| 関連サイト |
|
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.105.057003 |
|
|
関連名称 |
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.105.057003 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
prl105_057003.pdf (439.2 kB)
