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Field-free topological behavior in the magnetic domain wall of ferrimagnetic GdFeCo

Author

Listed:
  • Zhuolin Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jian Su

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Shi-Zeng Lin

    (Los Alamos National Laboratory)

  • Dan Liu

    (Beijing Technology and Business University)

  • Yang Gao

    (Beijing Normal University)

  • Shouguo Wang

    (Beijing Normal University)

  • Hongxiang Wei

    (Chinese Academy of Sciences)

  • Tongyun Zhao

    (Chinese Academy of Sciences)

  • Ying Zhang

    (Chinese Academy of Sciences
    Songshan Lake Materials Laboratory, Dongguan)

  • Jianwang Cai

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Baogen Shen

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Exploring and controlling topological textures such as merons and skyrmions has attracted enormous interests from the perspective of fundamental research and spintronic applications. It has been predicted theoretically and proved experimentally that the lattice form of topological meron-skyrmion transformation can be realized with the requirement of external magnetic fields in chiral ferromagnets. However, such topological transition behavior has yet to be verified in other materials. Here, we report real-space observation of magnetic topology transformation between meron pairs and skyrmions in the localized domain wall of ferrimagnetic GdFeCo films without the need of magnetic fields. The topological transformation in the domain wall of ferrimagnet is introduced by temperature-induced spin reorientation transition (SRT) and the underlying mechanism is revealed by micromagnetic simulations. The convenient electric-controlling topology transformation and driving motion along the confined domain wall is further anticipated, which will enable advanced application in magnetic devices.

Suggested Citation

  • Zhuolin Li & Jian Su & Shi-Zeng Lin & Dan Liu & Yang Gao & Shouguo Wang & Hongxiang Wei & Tongyun Zhao & Ying Zhang & Jianwang Cai & Baogen Shen, 2021. "Field-free topological behavior in the magnetic domain wall of ferrimagnetic GdFeCo," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25926-4
    DOI: 10.1038/s41467-021-25926-4
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