凝聚态物理
自旋霍尔效应
反铁磁性
自旋极化
物理
旋转
霍尔效应
自旋(空气动力学)
磁化
磁场
量子力学
电子
热力学
作者
Xianzhe Chen,Shuyuan Shi,Guangyuan Shi,Xiaolong Fan,Cheng Song,Xiaofeng Zhou,Hua Bai,Liyang Liao,Yongjian Zhou,Hanwen Zhang,Ang Li,Yanhui Chen,Xiao Han,Shan Jiang,Zengwei Zhu,Huaqiang Wu,Xiangrong Wang,Desheng Xue,Hyunsoo Yang,Feng Pan
出处
期刊:Nature Materials
[Springer Nature]
日期:2021-02-25
卷期号:20 (6): 800-804
被引量:121
标识
DOI:10.1038/s41563-021-00946-z
摘要
The discovery of the spin Hall effect1 enabled the efficient generation and manipulation of the spin current. More recently, the magnetic spin Hall effect2,3 was observed in non-collinear antiferromagnets, where the spin conservation is broken due to the non-collinear spin configuration. This provides a unique opportunity to control the spin current and relevant device performance with controllable magnetization. Here, we report a magnetic spin Hall effect in a collinear antiferromagnet, Mn2Au. The spin currents are generated at two spin sublattices with broken spatial symmetry, and the antiparallel antiferromagnetic moments play an important role. Therefore, we term this effect the ‘antiferromagnetic spin Hall effect’. The out-of-plane spins from the antiferromagnetic spin Hall effect are favourable for the efficient switching of perpendicular magnetized devices, which is required for high-density applications. The antiferromagnetic spin Hall effect adds another twist to the atomic-level control of spin currents via the antiferromagnetic spin structure. A magnetic spin Hall effect is reported in the collinear antiferromagnet Mn2Au.
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