Occurrence of d-wave pairing in the phonon-mediated mechanism of high temperature superconductivity in cuprates

被引:43
|
作者
Kamimura, H
Matsuno, S
Suwa, Y
Ushio, H
机构
[1] ISTEC,SUPERCONDUCT RES LAB,KOUTOU KU,TOKYO 135,JAPAN
[2] SCI UNIV TOKYO,FAC SCI,DEPT APPL PHYS,SHINJUKU KU,TOKYO 162,JAPAN
[3] TOKYO NATL COLL TECHNOL,HACHIOJI,TOKYO 193,JAPAN
关键词
D O I
10.1103/PhysRevLett.77.723
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The k, k(1) dependence of spectral function alpha(2)F(Omega, k, k(1)) is calculated based on the extended two story house model in which carriers itinerate in the region of local antiferromagnetic ordering composed of the localized spins. The following results are obtained: (1) d-wave pairing occurs even for the phonon mechanism; (2) the out-of-plane phonon modes contribute to the superconductivity in cuprates while those like breathing modes do not contribute significantly; and (3) the electron-phonon interaction in CuO5 type cuprates is stronger than in CuO6 type cuprates.
引用
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页码:723 / 726
页数:4
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