Dynamic response of a strongly perturbed electron gas -: art. no. 041102

被引：3
|
作者：
Muiño, RD
Arnau, A
Salin, A
Echenique, PM
机构：
[1] DIPC, San Sebastian 20018, Spain
[2] UPVEHU, Fac Quim, Dept Fis Mat, San Sebastian 20080, Spain
[3] UPVEHU, CSIC, Ctr Mixto, Unidad Fis Mat, San Sebastian 20080, Spain
[4] Univ Bordeaux 1, CNRS, UMR 5803, Lab Physicochim Mol, F-33405 Talence, France
来源：
PHYSICAL REVIEW B | 2003年 / 68卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.68.041102
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dynamic response of an electron gas strongly perturbed by an impurity is calculated using density functional theory and many-body linear response theory. We find that the piling up of charge induced by the impurity significantly modifies electron dynamics in the vicinity of the impurity and the response of the system to localized external perturbations. Our results show the important local effects that the nonlinear screening of impurities introduce in the dynamic response of metallic systems.
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页数：4
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