Electron-phonon interaction and electron correlation in high temperature superconductors

被引：0
|
作者：
Ishihara, S [1 ]
Nagaosa, N
机构：
[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
[2] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 408卷
关键词：
electron-phonon interaction; electron correlation; ARPES; phonon softening;
D O I：
10.1016/j.physc.2004.02.101
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Roles of electron-phonon interaction in the strongly correlated cuprates have been investigated theoretically. We have found that the oxygen displacement contributes to the d-wave paring in the region along the (0, 0)-(q(x), 0) and (0, 0)-(0, q(y)), where the strong coupling to the electrons is observed experimentally. Being based on the slave-boson picture applied to the t-J model and the Eliashberg theory, roles of electron-phonon interaction in the angle-resolved photoemission spectra (ARPES), tunneling spectra and optical conductivity are investigated. The vertex correction is essential to describe the electron-phonon interaction in the strongly correlated cuprates. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：309 / 310
页数：2
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