Current induced magnetization switching in Pt/Co/Cr structures with enhanced perpendicular magnetic anisotropy and spin Hall effect

被引：6
作者：
Cui, Baoshan [1 ,2 ,3 ]
Yun, Jijun [1 ,2 ]
Yang, Kunya [1 ,2 ]
Wu, Hao [3 ]
Zhu, Zhendong [4 ]
Zuo, Yalu [1 ,2 ]
Yang, Dezheng [1 ,2 ]
Gao, Meizhen [1 ,2 ]
Zhang, Zongzhi [4 ]
Xi, Li [1 ,2 ]
Wang, Kang L. [3 ]
机构：
[1] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Gansu, Peoples R China
[2] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
[3] Univ Calif Los Angeles, Dept Elect & Comp Engn, Los Angeles, CA 90095 USA
[4] Fudan Univ, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China
来源：
APPLIED PHYSICS EXPRESS | 2019年 / 12卷 / 04期
基金：
中国国家自然科学基金;
关键词：
ELECTRONIC-STRUCTURE; DRIVEN; TORQUE;
D O I：
10.7567/1882-0786/ab0a42
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study the perpendicular magnetic anisotropy (PMA) and spin-orbit torques (SOTs) in Pt/Co/Cr stacks as a function of Cr thickness. An enhanced PMA is observed and ascribed to the strong interfacial anisotropy between Co and Cr. Moreover, SOTs induced magnetization switching is achieved under relatively small critical current density in the order of 10(6) A cm(-2) due to the enhanced effective spin Hall angle (theta(eff)(SH)) up to 0.15-0.27. Significantly, the linear dependence between theta(eff)(SH) and the square of longitudinal resistivity suggests that the spin Hall effect may arise from the intrinsic mechanism in our systems. (C) 2019 The Japan Society of Applied Physics
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页数：5
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共 42 条
  • [1] Spintronic Oscillator Based on Spin-Current Feedback Using the Spin Hall Effect
    Bhuktare, Swapnil
    Singh, Hanuman
    Bose, Arnab
    Tulapurkar, Ashwin. A.
    [J]. PHYSICAL REVIEW APPLIED, 2017, 7 (01):
  • [2] Sign Reversal of Fieldlike Spin-Orbit Torque in an Ultrathin Cr/Ni Bilayer
    Bose, Arnab
    Singh, Hanuman
    Kushwaha, Varun Kumar
    Bhuktare, Swapnil
    Dutta, Sutapa
    Tulapurkar, Ashwin A.
    [J]. PHYSICAL REVIEW APPLIED, 2018, 9 (01):
  • [3] Thickness dependence of spin Hall angle of Au grown on Y3Fe5O12 epitaxial films
    Brangham, Jack T.
    Meng, Keng-Yuan
    Yang, Angela S.
    Gallagher, James C.
    Esser, Bryan D.
    White, Shane P.
    Yu, Sisheng
    McComb, David W.
    Hammel, P. Chris
    Yang, Fengyuan
    [J]. PHYSICAL REVIEW B, 2016, 94 (05)
  • [4] Current-induced magnetization switching in Pt/Co/Ta with interfacial decoration by insertion of Cr to enhance perpendicular magnetic anisotropy and spin-orbit torques
    Cui, Baoshan
    Chen, Shiwei
    Li, Dong
    Yun, Jijun
    Guo, Xiaobin
    Wu, Kai
    Zhang, Xu
    Wang, Yupei
    Zuo, Yalu
    Gao, Meizhen
    Xi, Li
    [J]. APPLIED PHYSICS EXPRESS, 2018, 11 (01)
  • [5] Systematic variation of spin-orbit coupling with d-orbital filling: Large inverse spin Hall effect in 3d transition metals
    Du, Chunhui
    Wang, Hailong
    Yang, Fengyuan
    Hammel, P. Chris
    [J]. PHYSICAL REVIEW B, 2014, 90 (14):
  • [6] Emori S, 2013, NAT MATER, V12, P611, DOI [10.1038/NMAT3675, 10.1038/nmat3675]
  • [7] Anisotropic Spin Hall Effect from First Principles
    Freimuth, Frank
    Bluegel, Stefan
    Mokrousov, Yuriy
    [J]. PHYSICAL REVIEW LETTERS, 2010, 105 (24)
  • [8] Haazen PPJ, 2013, NAT MATER, V12, P299, DOI [10.1038/NMAT3553, 10.1038/nmat3553]
  • [9] Interface induced inverse spin Hall effect in bismuth/permalloy bilayer
    Hou, Dazhi
    Qiu, Z.
    Harii, K.
    Kajiwara, Y.
    Uchida, K.
    Fujikawa, Y.
    Nakayama, H.
    Yoshino, T.
    An, T.
    Ando, K.
    Jin, Xiaofeng
    Saitoh, E.
    [J]. APPLIED PHYSICS LETTERS, 2012, 101 (04)
  • [10] ELECTRONIC-STRUCTURE AND TRANSPORT-PROPERTIES IN MAGNETIC SUPERLATTICES
    ITOH, H
    INOUE, J
    MAEKAWA, S
    [J]. PHYSICAL REVIEW B, 1993, 47 (10): : 5809 - 5818
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