DYNAMICAL SCREENING AND QUASI-PARTICLE SPECTRAL FUNCTIONS FOR NONMETALS

被引：21

作者：

BECHSTEDT, F ^{[1
]}

FIEDLER, M ^{[1
]}

KRESS, C ^{[1
]}

DELSOLE, R ^{[1
]}

机构：

[1] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00173 ROME,ITALY

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.49.7357

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quasiparticle band-structure calculations for semiconductors treat the exchange-correlation self-energy operator within the GW approximation. in this paper, a detailed study of the energy dependence of the self-energy due to dynamical screening is presented. Spectral functions for near-band-gap excitations in silicon and diamond are calculated and the quasiparticle peak and satellite structures are discussed.

引用

页码：7357 / 7362

页数：6

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