Collective modes and the superconducting-state spectral function of Bi2Sr2CaCu2O8

被引：110

作者：

Norman, MR

Ding, H

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] Univ Illinois, Dept Phys, Chicago, IL 60607 USA

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.57.R11089

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoemission spectra of the high-temperature superconductor Bi2Sr2CaCu2O8 near (pi,0) show a dramatic change when cooling below T-c: the broad peak. in the normal state turns into a sharp low-energy peak followed by a higher binding-energy hump. Recent experiments fmd that this row-energy peak persists over a significant range in momentum space. We show in this paper that these data are well described by a simple model of electrons interacting with a collective mode that appears only below T-c.

引用

收藏

页码：R11089 / R11092

页数：4

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