Relaxation rate of excited electrons in an electron gas - A comparative study of different approximations

被引：2

作者：

Alducin, M

Juaristi, JI

Nagy, I

机构：

[1] Univ Basque Country, ETSII, Dept Ingn Elect, Bilbao 48013, Spain

[2] Univ Basque Country, CSIC, UPV,EHU, Dept Fis Mat, San Sebastian 20080, Spain

[3] Univ Basque Country, CSIC, UPV,EHU, Ctr Mixto, San Sebastian 20080, Spain

[4] Tech Univ Budapest, Inst Phys, Dept Theoret Phys, H-1521 Budapest, Hungary

[5] Donostia Int Phys Ctr, San Sebastian 20080, Spain

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2003年 / 129卷 / 2-3期

基金：

匈牙利科学研究基金会;

关键词：

electron lifetime; charge and spin fluctuations; non-linear screening; correlation effects; paramagnetic electron gas;

D O I：

10.1016/S0368-2048(03)00059-8

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The relaxation rate of excited electrons in a paramagnetic electron gas is calculated. A perturbative theory, based on the charge and spin response functions and the local-field methodology of generalized mean-field descriptions, is adopted. A link between this treatment and the kinetic treatment for the relaxation phenomena is established in the first-order Born limit. The problem of strong coupling is discussed by implementing the kinetic framework with non-linearly screened electrostatic potentials and phase-shift calculations. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：117 / 126

页数：10

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