中国物理B ›› 2016, Vol. 25 ›› Issue (6): 67203-067203.doi: 10.1088/1674-1056/25/6/067203

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Control of Hall angle of Skyrmion driven by electric current

Gao-Bin Liu(刘高斌), Da Li(李达), de Chatel P F, Jian Wang(王健), Wei Liu(刘伟), Zhi-Dong Zhang(张志东)   

  1. 1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    2 School of Science, University of Science and Technology Liaoning, Anshan 114051, China;
    3 MTA-DE Particle Physics Research Group, H-4010 Debrecen P. O. Box 105, Hungary
  • 收稿日期:2015-12-14 修回日期:2016-03-08 出版日期:2016-06-05 发布日期:2016-06-05
  • 通讯作者: Gao-Bin Liu E-mail:gbliu12b@imr.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 51331006) and the Fund from the Chinese Academy of Sciences (Grant No. KJZD-EW-M05).

Control of Hall angle of Skyrmion driven by electric current

Gao-Bin Liu(刘高斌)1,2, Da Li(李达)1, de Chatel P F3, Jian Wang(王健)1,2, Wei Liu(刘伟)1, Zhi-Dong Zhang(张志东)1   

  1. 1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    2 School of Science, University of Science and Technology Liaoning, Anshan 114051, China;
    3 MTA-DE Particle Physics Research Group, H-4010 Debrecen P. O. Box 105, Hungary
  • Received:2015-12-14 Revised:2016-03-08 Online:2016-06-05 Published:2016-06-05
  • Contact: Gao-Bin Liu E-mail:gbliu12b@imr.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 51331006) and the Fund from the Chinese Academy of Sciences (Grant No. KJZD-EW-M05).

摘要:

Skyrmions are very promising for applications in spintronics and magnetic memory. It is desired to manipulate and operate a single skyrmion. Here we report on the thermal effect on the motion of current-driven magnetic Skyrmions in magnetic metal. The results show that the magnon current induced by the thermal gradient acts on Skyrmions via magnonic spin-transfer torque, an effect of the transverse and longitudinal Skyrmions drift velocities, thus leading to the effective manipulation of the Hall angle through the ratio of thermal gradient to electric current density, which can be used as a Skyrmion valve.

关键词: spin-transfer torque, Hall angle, magnon current, Skyrmion valve

Abstract:

Skyrmions are very promising for applications in spintronics and magnetic memory. It is desired to manipulate and operate a single skyrmion. Here we report on the thermal effect on the motion of current-driven magnetic Skyrmions in magnetic metal. The results show that the magnon current induced by the thermal gradient acts on Skyrmions via magnonic spin-transfer torque, an effect of the transverse and longitudinal Skyrmions drift velocities, thus leading to the effective manipulation of the Hall angle through the ratio of thermal gradient to electric current density, which can be used as a Skyrmion valve.

Key words: spin-transfer torque, Hall angle, magnon current, Skyrmion valve

中图分类号:  (Spin polarized transport)

  • 72.25.-b
73.43.Cd (Theory and modeling) 75.70.Kw (Domain structure (including magnetic bubbles and vortices)) 75.40.Gb (Dynamic properties?)