THEORY OF SI DONOR-ACCEPTOR COMPLEXES IN GAAS

被引:8
|
作者
JONES, R [1 ]
OBERG, S [1 ]
机构
[1] UNIV LULEA,DEPT MATH,S-95187 LULEA,SWEDEN
关键词
D O I
10.1088/0268-1242/9/12/022
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Local density functional cluster calculations are carried out on Si-Ga-As-X complexes where X = Li, Be, Cu, Zn and a vacancy. We find that that the donor and acceptor move away from each other contrary to a simple argument based on a Coulomb attraction between them. This result explains the insensitivity of the Si-related local vibrational modes to the identity of the impurity and their similarity to the case when X is a vacancy.
引用
收藏
页码:2291 / 2294
页数:4
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