Many-body effects in angle-resolved photoemission: Quasiparticle energy and lifetime of a Mo(110) surface state

被引：283

作者：

Valla, T ^{[1
]}

Fedorov, AV

Johnson, PD

Hulbert, SL

机构：

[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[2] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.83.2085

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a high-resolution photoemission study of a Mo(110) surface state various contributions to the measured width and energy of the quasiparticle peak are investigated. Electron-phonon coupling, electron-electron interactions, and scattering from defects are all identified mechanisms responsible for the finite lifetime of a valence photohole. The electron-phonon induced mass enhancement and rapid change of the photohole lifetime near the Fermi level are observed for the first time.

引用

页码：2085 / 2088

页数：4

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