A spin-polarized scheme tor obtaining quasi-particle energies within the density functional theory

被引:9
|
作者
Barbiellini, B [1 ]
Bansil, A [1 ]
机构
[1] Northeastern Univ, Dept Phys, Boston, MA 02115 USA
关键词
metals; semi conductors; ab initio calculations;
D O I
10.1016/j.jpcs.2005.09.014
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We discuss an efficient scheme for obtaining spin-polarized quasi-particle excitation energies within the general framework of the density functional theory (DFT). Our approach is to correct the DFT eigenvalues via the electrostatic energy of a majority or minority spin electron resulting from its interaction with the associated exchange and correlation holes by using appropriate spin-resolved pair correlation functions. A version of the method for treating systems with localized orbitals, including the case of partially filled metallic bands, is considered. Illustrative results on Cu are presented. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2192 / 2196
页数:5
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