Room-temperature observation and current control of skyrmions in Pt/Co/Os/Pt thin films

被引：48
|
作者：
Tolley, R. [1 ,2 ]
Montoya, S. A. [3 ]
Fullerton, E. E. [1 ,2 ]
机构：
[1] Univ Calif San Diego, Ctr Memory & Recording Res, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA
[3] Space & Naval Warfare Syst Ctr Pacific, San Diego, CA 92152 USA
来源：
PHYSICAL REVIEW MATERIALS | 2018年 / 2卷 / 04期
关键词：
MAGNETIC DOMAIN-STRUCTURES; REAL-SPACE OBSERVATION; LATTICE; MOTION; STABILITY; DYNAMICS; TORQUE;
D O I：
10.1103/PhysRevMaterials.2.044404
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the observation of room-temperature magnetic skyrmions in Pt/Co/Os/Pt thin-film heterostructures and their response to electric currents. The magnetic properties are extremely sensitive to inserting thin Os layers between the Co-Pt interface, resulting in reduced saturation magnetization, magnetic anisotropy, and Curie temperature. The observed skyrmions exist in a narrow temperature, applied-field and layer-thickness range near the spin-reorientation transition from perpendicular to in-plane magnetic anisotropy. The skyrmions have an average diameter of 2.3 mu m and transport measurements demonstrate these features can be displaced by means of spin-orbit torques with current densities as low as J = 2 x 10(8) A/m(2) and display a skyrmion Hall effect.
引用
收藏
页数：8
相关论文
共 50 条
  • [41] Study of the room-temperature ferromagnetic GaMnN thin films
    Gao, Xingguo
    Man, Baoyuan
    Liu, Mei
    Yang, Cheng
    Chen, Chuansong
    Zhang, Chao
    Sun, Zhencui
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2015, 378 : 447 - 450
  • [42] THIN SI FILMS CAN FORM AT ROOM-TEMPERATURE
    COHEN, C
    ELECTRONICS-US, 1981, 54 (22): : 82 - +
  • [43] Study of room-temperature deposited ZrNx thin films
    Choudhary, Nikita
    Kalal, S.
    Tayal, A.
    Mahapatra, B.
    Mukherjee, S.
    Gupta, Mukul
    BULLETIN OF MATERIALS SCIENCE, 2024, 47 (03)
  • [44] Observation of optical properties related to room-temperature ferromagnetism in co-sputtered Zn1-xCoxO thin films
    Lim, SW
    Hwang, DK
    Myoung, JM
    SOLID STATE COMMUNICATIONS, 2003, 125 (05) : 231 - 235
  • [45] MAGNETOOPTICAL STUDIES OF PT/CO MULTILAYERS AND PT-CO ALLOY THIN-FILMS
    VISNOVSKY, S
    NYVLT, M
    PARIZEK, V
    KIELAR, P
    PROSSER, V
    KRISHNAN, R
    IEEE TRANSACTIONS ON MAGNETICS, 1993, 29 (06) : 3390 - 3392
  • [46] Spin polarization of currents in Co/Pt multilayer and Co-Pt alloy thin films
    Rajanikanth, A.
    Kasai, S.
    Ohshima, N.
    Hono, K.
    APPLIED PHYSICS LETTERS, 2010, 97 (02)
  • [47] Role of cobalt in room-temperature ferromagnetic Co-doped ZnO thin films
    Wang, C. C.
    Liu, M.
    Man, B. Y.
    Chen, C. S.
    Jiang, S. Z.
    Yang, S. Y.
    Gao, X. G.
    Xu, S. C.
    Hu, B.
    Sun, Z. C.
    Guo, J. J.
    Hou, J.
    AIP ADVANCES, 2012, 2 (01):
  • [48] Room-temperature preparation and magnetic behavior of Co2MnSi thin films
    Kämmerer, S
    Heitmann, S
    Meyners, D
    Sudfeld, D
    Thomas, A
    Hütten, A
    Reiss, G
    JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 7945 - 7947
  • [49] Observation of ferromagnetism at room temperature in ZnO thin films
    Hong, Nguyen Hoa
    Sakai, Joe
    Brize, Virginie
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (03)
  • [50] Large Anomalous Nernst Effects at Room Temperature in Fe3Pt Thin films
    Li, Minghang
    Pi, Hanqi
    Zhao, Yunchi
    Lin, Ting
    Zhang, Qinghua
    Hu, Xinzhe
    Xiong, Changmin
    Qiu, Zhiyong
    Wang, Lichen
    Zhang, Ying
    Cai, Jianwang
    Liu, Wuming
    Sun, Jirong
    Hu, Fengxia
    Gu, Lin
    Weng, Hongming
    Wu, Quansheng
    Wang, Shouguo
    Chen, Yunzhong
    Shen, Baogen
    ADVANCED MATERIALS, 2023, 35 (32)
12345