Spin-orbit coupling induced anisotropy effects in bimetallic antiferromagnets: A route towards antiferromagnetic spintronics

被引：227

作者：

Shick, A. B. ^{[1
]}

Khmelevskyi, S. ^{[2
]}

Mryasov, O. N. ^{[3
]}

Wunderlich, J. ^{[4
]}

Jungwirth, T. ^{[5
,6
]}

机构：

[1] ASCR, Inst Phys, Prague 18221 8, Czech Republic

[2] Vienna Univ Technol, CMS, A-1040 Vienna, Austria

[3] Univ Alabama, MINT, Tuscaloosa, AL 35487 USA

[4] Hitachi Cambridge Lab, Cambridge CB3 0HE, England

[5] ASCR, Inst Phys, Prague 16253 6, Czech Republic

[6] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 21期

关键词：

SINGLE-ELECTRON-TRANSISTOR; MAGNETIC-PROPERTIES; MAGNETORESISTANCE;

D O I：

10.1103/PhysRevB.81.212409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic anisotropy phenomena in bimetallic antiferromagnets Mn2Au and MnIr are studied by first-principles density-functional theory calculations. We find strong and lattice-parameter-dependent magnetic anisotropies of the ground-state energy, chemical potential, and density of states, and attribute these anisotropies to combined effects of large moment on the Mn 3d shell and large spin-orbit coupling on the 5d shell of the noble metal. Large magnitudes of the proposed effects can open a route towards spintronics in compensated antiferromagnets without involving ferromagnetic elements.

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页数：4

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