Temperature evolution of the spectral peak in high-temperature superconductors

被引：22

作者：

Norman, MR

Kaminski, A

Mesot, J

Campuzano, JC

机构：

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

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

[3] Swiss Fed Inst Technol, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[4] PSI, CH-5232 Villigen, Switzerland

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 14期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.63.140508

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent photoemission data in the high-temperature cuprate superconductor Bi2212 have been interpreted in terms of a sharp spectral peak with a temperature-independent lifetime, whose weight strongly decreases upon heating. By a detailed analysis of the data, we are able to extract the temperature dependence of the electron self-energy, and demonstrate that this interpretation is misleading. Rather, the spectral peak loses its integrity above T-c due to a large reduction in the electron lifetime.

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页数：4

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