Theoretical investigation of disorder effect on positron states in GaxIn1-xAsySb1-y/GaSb

被引：10

作者：

Bouarissa, N ^{[1
]}

机构：

[1] Univ Msila, Dept Phys, Msila 28000, Algeria

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2001年 / 62卷 / 06期

关键词：

D O I：

10.1016/S0022-3697(01)00008-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A pseudopotential formalism under the virtual crystal approximation with and without incorporating the effect of the alloy disorder is applied to study the positron behaviour in cubic GaxIn1-xAsySb1-y quaternary system lattice matched to GaSb. To the best of our knowledge, this is the first time a study has been carried out on such an alloy. The positron wavefunctions have been calculated employing the point-core approximation for the ionic potential. Our results show that the positronic properties are generally very weakly affected by the alloy disorder. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1163 / 1170

页数：8

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