Local-field and exchange-correlation effects in optical spectra of semiconductors

被引：41

作者：

Gavrilenko, VI

Bechstedt, F

机构：

[1] Friedrich-Schiller-Universität, Institut für Festkörpertheorie und Theoretische Optik, 07743 Jena

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.54.13416

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The density-functional theory with ab initio pseudopotentials has been used Co study the linear optical response of semiconductors. We present results for optical spectra where the effects of the macroscopic local-held and microscopic exchange-correlation interaction are included beyond diagonal and random-phase approximations. Quasiparticle corrections to the single-particle energies have been added in the polarization function. Numerical calculations are performed for the column-IV materials Si, SiC, and diamond as model substances.

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页码：13416 / 13419

页数：4

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