Relaxation of excited electrons in an electron gas: A mean-field approach with charge and spin polarizations

被引：5

作者：

Nagy, I ^{[1
]}

Alducin, M

Echenique, PM

机构：

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

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

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

[4] Univ Basque Country, Dept Fis Mat, San Sebastian 20080, Spain

[5] Univ Basque Country, CSIC, Ctr Mixto, San Sebastian 20080, Spain

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.65.235102

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The relaxation rate of excited electrons in a paramagnetic electron gas is calculated. The theory is based on the charge and spin response functions and the local-field methodology of generalized mean-field descriptions. A link between this treatment and the kinetic treatment for the relaxation phenomena is established in the first-order Born limit. The relative weight of the spin-fluctuation channel in the important low-energy dynamics is quantified for our model system.

引用

页码：2351021 / 2351026

页数：6

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