Dynamical exchange effects in the dielectric function of the two-dimensional electron gas

被引：0
|
作者：
K. J. Hameeuw
F. Brosens
J. T. Devreese
机构：
[1] Universiteit Antwerpen-UIA,TFVS, Departement Natuurkunde
来源：
The European Physical Journal B - Condensed Matter and Complex Systems | 2003年 / 35卷
关键词：
Exchange Interaction; Static Approximation; Exchange Effect; Local Field; Dielectric Function;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Dynamical exchange interactions can be introduced in the dielectric function via a dynamic local field factor. We study the effects of this inclusion on both the static and the frequency dependent dielectric function of a two-dimensional electron gas, using the dynamic local field factor that we derived recently via the dynamical exchange decoupling method. The results are compared with the dielectric function in the Random Phase Approximation and with different dynamic and static approximations of the local field factor.
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页码：93 / 101
页数：8
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