Role of the electron-phonon interaction in the strongly correlated cuprate superconductors

被引:127
作者
Shen, ZX [1 ]
Lanzara, A
Ishihara, S
Nagaosa, N
机构
[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[2] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA
[3] Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA
[4] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
[5] Agcy Ind Sci & Technol, Correlated Electron Res Ctr, Tsukuba, Ibaraki 3050046, Japan
来源
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 2002年 / 82卷 / 13期
关键词
D O I
10.1080/13642810210142735
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using high-resolution angle-resolved photoemission data in conjunction with that from neutron and other probes, we show that electron-phonon coupling is strong in cuprate superconductors and that it plays an important role in pairing. In addition to the strong electron correlation, the inclusion of phonons provides a theoretical framework explaining many important phenomena that cannot be understood by a strongly correlated electronic model alone. In particular, it is indispensable to explain the difference among materials. The phonons with the wavenumber around the (0, q(y)) and (q(x), 0) axes create d-wave pairing while that near (pi, pi) are pair breaking. Therefore the half-breathing mode of the oxygen motions helps d-wave superconductivity.
引用
收藏
页码:1349 / 1368
页数:20
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