Anomalous Hall effect and spin-orbit torques in MnGa/IrMn films: Modification from strong spin Hall effect of the antiferromagnet

被引：33
|
作者：
Meng, K. K. [1 ]
Miao, J. [1 ]
Xu, X. G. [1 ]
Wu, Y. [1 ]
Zhao, X. P. [2 ]
Zhao, J. H. [2 ]
Jiang, Y. [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
来源：
PHYSICAL REVIEW B | 2016年 / 94卷 / 21期
基金：
美国国家科学基金会;
关键词：
PERPENDICULAR MAGNETIZATION; FIELD; FERROMAGNETS; DEPENDENCE; DYNAMICS;
D O I：
10.1103/PhysRevB.94.214413
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report systematic measurements of anomalous Hall effect (AHE) and spin-orbit torques (SOTs) in MnGa/IrMn films, in which a single L1(0)-MnGa epitaxial layer reveals obvious orbital two-channel Kondo (2CK) effect. As increasing the thickness of the antiferromagnet IrMn, the strong spin Hall effect (SHE) has gradually suppressed the orbital 2CK effect and modified the AHE of MnGa. A scaling involving multiple competing scattering mechanisms has been used to distinguish different contributions to the modified AHE. Finally, the sizeable SOT in the MnGa/IrMn films induced by the strong SHE of IrMn have been investigated. The IrMn layer also supplies an in-plane exchange bias field and enables nearly field-free magnetization reversal.
引用
收藏
页数：7
相关论文
共 50 条
  • [1] Modification of the anomalous Hall effect in Fe films by δ-doping Bi impurities with strong spin-orbit coupling
    Li, Jiajia
    Yue, Di
    Xu, Jianli
    Jin, Xiaofeng
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2021, 534
  • [2] Acoustic spin Hall effect in strong spin-orbit metals
    Kawada, Takuya
    Kawaguchi, Masashi
    Funato, Takumi
    Kohno, Hiroshi
    Hayashi, Masamitsu
    SCIENCE ADVANCES, 2021, 7 (02)
  • [3] Anomalous Hall effect in superconductors with spin-orbit interaction
    Sacramento, P. D.
    Araujo, M. A. N.
    Vieira, V. R.
    Dugaev, V. K.
    Barna, J.
    PHYSICAL REVIEW B, 2012, 85 (01)
  • [4] Spin disorder effect in anomalous Hall effect in MnGa
    Mendonca, A. P. A.
    Varalda, J.
    Schreiner, W. H.
    Mosca, D. H.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017, 443 : 165 - 170
  • [5] Polarity Manipulation of Anomalous Hall Effect and Enhanced Spin-Orbit Torques in Perpendicular Synthetic Antiferromagnets
    Zhang, Jingying
    Xue, Hongwei
    Li, Ziyang
    Song, Yiwen
    Zhang, Jiali
    Jiang, Zhiyao
    Jin, Qingyuan
    Zhang, Zongzhi
    PHYSICAL REVIEW APPLIED, 2023, 20 (02)
  • [6] Robust spin-orbit torques in ferromagnetic multilayers with weak bulk spin Hall effect
    Liu, Q. B.
    Meng, K. K.
    Zheng, S. Q.
    Chen, J. K.
    Miao, J.
    Xu, X. G.
    Jiang, Y.
    APPLIED PHYSICS LETTERS, 2020, 117 (12)
  • [7] Spin-Orbit Optical Hall Effect
    Fu, Shenhe
    Guo, Chaoheng
    Liu, Guohua
    Li, Yongyao
    Yin, Hao
    Li, Zhen
    Chen, Zhenqiang
    PHYSICAL REVIEW LETTERS, 2019, 123 (24)
  • [8] Anomalous Hall effect in MnAl/W bilayers: Modification from strong spin Hall effect of W
    Meng, K. K.
    Miao, J.
    Xu, X. G.
    Wu, Y.
    Zhao, J. H.
    Jiang, Y.
    SOLID STATE COMMUNICATIONS, 2017, 255 : 15 - 19
  • [9] Strong spin Hall effect in the antiferromagnet PtMn
    Ou, Yongxi
    Shi, Shengjie
    Ralph, D. C.
    Buhrman, R. A.
    PHYSICAL REVIEW B, 2016, 93 (22)
  • [10] Spin Hall effect of excitons with spin-orbit coupling
    Wang, Jian-Wei
    Li, Shu-Shen
    APPLIED PHYSICS LETTERS, 2007, 91 (05)
12345