Prospect for tunneling anisotropic magneto-resistance in ferrimagnets: Spin-orbit coupling effects in Mn3Ge and Mn3Ga

被引：9

作者：

Khmelevskyi, S. ^{[1
]}

Shick, A. B. ^{[2
]}

Mohn, P. ^{[1
]}

机构：

[1] Vienna Univ Technol, Ctr Computat Mat Sci, Wiedner Hauptstr 8-10, A-1040 Vienna, Austria

[2] Inst Phys ASCR, Slovance 2, Prague 18221, Czech Republic

来源：

APPLIED PHYSICS LETTERS | 2016年 / 109卷 / 22期

关键词：

MAGNETIC-ANISOTROPY;

D O I：

10.1063/1.4970691

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic anisotropic phenomena in Mn3Ge and Mn3Ga ferrimagnets are studied by first-principles density functional theory calculations. We find a large positive magnetic anisotropy energy, associated with the Mn-atoms in the 4d-crystallographic positions. Sizable anisotropy in the density of states is found in the vicinity of the Fermi energy, and suggests the promising possibility for the generation of a sizable tunneling anisotropic magneto-resistance effect (TAMR). The use of the ferrimagnetic materials for TAMR magnetic tunneling junctions is discussed as a prospective alternative for ferromagnetic and antiferromagnetic materials. Published by AIP Publishing.

引用

页数：4

共 37 条

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