Magnetic nanoscale laminates with tunable exchange coupling from first principles

被引：79

作者：

Dahlqvist, M. ^{[1
]}

Alling, B. ^{[1
]}

Abrikosov, I. A. ^{[1
]}

Rosen, J. ^{[1
]}

机构：

[1] Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 22期

基金：

瑞典研究理事会; 欧洲研究理事会;

关键词：

INITIO MOLECULAR-DYNAMICS; M(N+1)AX(N) PHASES; MAGNETORESISTANCE; TRANSITION;

D O I：

10.1103/PhysRevB.84.220403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The M(n+1)AX(n) (MAX) phases are nanolaminated compounds with a unique combination of metallic and ceramic properties, not yet including magnetism. We carry out a systematic theoretical study of potential magnetic MAX phases and predict the existence of stable magnetic (Cr1-xMnx)(2)AlC alloys. We show that in this system ferromagnetically ordered Mn layers are exchange coupled via nearly nonmagnetic Cr layers, forming an inherent structure of atomic-thin magnetic multilayers, and that the degree of disorder between Cr and Mn in the alloy can be used to tune the sign and magnitude of the coupling.

引用

页数：5

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