Spin switching in antiferromagnets using Neel-order spin-orbit torques

被引：3
|
作者：
Wadley, P. [1 ]
Edmonds, K. W. [1 ]
机构：
[1] Univ Nottingham, Sch Phys & Astron, Univ Pk, Nottingham NG7 2RD, England
来源：
CHINESE PHYSICS B | 2018年 / 27卷 / 10期
基金：
英国工程与自然科学研究理事会;
关键词：
spintronics; antiferromagnetic; current-induced torques; magnetic domains; PERPENDICULAR MAGNETIZATION;
D O I：
10.1088/1674-1056/27/10/107201
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Antiferromagnets offer considerable potential for electronic device applications. This article reviews recent demonstrations of spin manipulation in antiferromagnetic devices using applied electrical currents. Due to spin-orbit coupling in environments with particular crystalline or structural symmetries, the electric current can induce an effective magnetic field with a sign that alternates on the lengthscale of the unit cell. The staggered effective field provides an efficient mechanism for switching antiferromagnetic domains and moving antiferromagnetic domain walls, with writing speeds in the terahertz regime.
引用
收藏
页数：8
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