Many-body effects on the electronic and optical properties of bulk GaP

被引：0

作者：

Pulci, O

Palummo, M

Olevano, V

Onida, G

Reining, L

Del Sole, R

机构：

[1] Univ Roma Tor Vergata, Dipartimento Fis, INFM, I-00133 Rome, Italy

[2] Ecole Polytech, CNRS, Solides Irradies Lab, CEA, F-91128 Palaiseau, France

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2001年 / 188卷 / 04期

关键词：

D O I：

10.1002/1521-396X(200112)188:4<1261::AID-PSSA1261>3.0.CO;2-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an ab-initio study of GaP bulk as a test case to show the importance of going beyond the single particle Density Functional Theory (DFT) scheme in the calculation of excited state properties. The inclusion of many-body effects within the GW approach for the determination of electronic gaps, and of excitonic effects in the calculations of the dielectric function, is discussed. Comparison with one-particle DFT results and with experimental data are presented.

引用

页码：1261 / 1266

页数：6

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