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

作     者：P Wadley K W Edmonds 

作者机构：School of Physics and AstronomyUniversity of Nottingham 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2018年第27卷第10期

页      面：88-95页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by EPSRC(Grant No.EP/P019749/1) support from the Royal Society through a University Research Fellowship 

主　　题：spintronics antiferromagnetic current-induced torques magnetic domains 

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.