Interlayer exchange coupling: The effect of substitutional disorder

被引：49

作者：

Bruno, P

Kudrnovsky, J

Drchal, V

Turek, I

机构：

[1] ACAD SCI CZECH REPUBL,INST PHYS,CZ-18040 PRAGUE 8,CZECH REPUBLIC

[2] VIENNA TECH UNIV,INST TECH ELEKTROCHEM,A-1060 VIENNA,AUSTRIA

[3] ACAD SCI CZECH REPUBL,INST PHYS MAT,CZ-61662 BRNO,CZECH REPUBLIC

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.76.4254

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of substitutional disorder on the interlayer exchange coupling is studied, with focus on the role of the ''vertex corrections.'' It is proved, on general grounds, that, to first order, the latter do not contribute to the exchange coupling, due to exact cancellation. The applicability of this result for realistic systems is supported by first-principle calculations within the coherent potential approximation, for various disordered systems.

引用

页码：4254 / 4257

页数：4

共 14 条

[11] OSCILLATORY EXCHANGE COUPLING AND GIANT MAGNETORESISTANCE VIA CU-X ALLOYS (X = AU, FE, NI) [J].