THEORY OF LOCAL BOND-LENGTH RELAXATION IN HG1-XCDXTE ALLOYS

被引：26

作者：

TSAI, MH ^{[1
]}

DOW, JD ^{[1
]}

NEWMAN, KE ^{[1
]}

KASOWSKI, RV ^{[1
]}

机构：

[1] DUPONT CO,DEPT CENT RES & DEV,EXPTL STN,WILMINGTON,DE 19880

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.41.7744

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Local-density pseudofunction calculations of local Hg-Te, local Cd-Te, and average bond lengths in Hg0.5Cd0.5Te are reported and compared with data and with other theories. Our results agree with extended x-ray-absorption fine-structure data and a phenomenological strain theory which show that the perfect compound-crystal bond lengths are virtually conserved in the alloy, but conflict with previous theories which predicted large bond relaxations away from the average bond length. The calculations imply that charge transfer from Cd to Hg is quite small in these alloys. © 1990 The American Physical Society.

引用

页码：7744 / 7748

页数：5

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