中国物理B ›› 2022, Vol. 31 ›› Issue (8): 87507-087507.doi: 10.1088/1674-1056/ac754f

所属专题: TOPICAL REVIEW — Celebrating 30 Years of Chinese Physics B

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Progress and challenges in magnetic skyrmionics

Haifeng Du(杜海峰)1 and Xiangrong Wang(王向荣)2,†   

  1. 1 Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, HFIPS, Anhui, Chinese Academy of Sciences, Hefei 230031, China;
    2 Physics Department, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
  • 收稿日期:2022-04-14 修回日期:2022-05-31 接受日期:2022-06-02 出版日期:2022-07-18 发布日期:2022-07-27
  • 通讯作者: Xiangrong Wang E-mail:phxwan@ust.hk
  • 基金资助:
    H. D. acknowledges the financial support from the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB33030100) and the Equipment Development Project of Chinese Academy of Sciences (Grant No. YJKYYQ20180012). X. R. W. is supported by the National Natural Science Foundation of China (Grant No. 11974296) and Hong Kong RGC, China (Grant Nos. 16301518, 16301619, and 6302321).

Progress and challenges in magnetic skyrmionics

Haifeng Du(杜海峰)1 and Xiangrong Wang(王向荣)2,†   

  1. 1 Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, HFIPS, Anhui, Chinese Academy of Sciences, Hefei 230031, China;
    2 Physics Department, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
  • Received:2022-04-14 Revised:2022-05-31 Accepted:2022-06-02 Online:2022-07-18 Published:2022-07-27
  • Contact: Xiangrong Wang E-mail:phxwan@ust.hk
  • Supported by:
    H. D. acknowledges the financial support from the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB33030100) and the Equipment Development Project of Chinese Academy of Sciences (Grant No. YJKYYQ20180012). X. R. W. is supported by the National Natural Science Foundation of China (Grant No. 11974296) and Hong Kong RGC, China (Grant Nos. 16301518, 16301619, and 6302321).

摘要: Magnetic skyrmions are two-dimensional localized topological spin-structures characterized by the skyrmion number that measures the number of times of spins wrapping the Bloch sphere. Skyrmions behave like particles under an external stimulus and are promising information carriers. Skyrmions can exist as an isolated object as well as skyrmion condensates in crystal structures, helical/conical states, mazes or irregular stripy states with emergent electromagnetic fields. Thus, skyrmions provide a nice platform for studying fundamental physics, other than its applications in spintronics. In this perspective, we briefly review some recent progress in the field and present an outlook of the fundamental challenges in device applications.

关键词: magnetic skyrmions

Abstract: Magnetic skyrmions are two-dimensional localized topological spin-structures characterized by the skyrmion number that measures the number of times of spins wrapping the Bloch sphere. Skyrmions behave like particles under an external stimulus and are promising information carriers. Skyrmions can exist as an isolated object as well as skyrmion condensates in crystal structures, helical/conical states, mazes or irregular stripy states with emergent electromagnetic fields. Thus, skyrmions provide a nice platform for studying fundamental physics, other than its applications in spintronics. In this perspective, we briefly review some recent progress in the field and present an outlook of the fundamental challenges in device applications.

Key words: magnetic skyrmions

中图分类号:  (Magnetization dynamics)

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