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Creation of skyrmions and antiskyrmions by local heating

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Listed:
  • Wataru Koshibae

    (RIKEN Center for Emergent Matter Science (CEMS))

  • Naoto Nagaosa

    (RIKEN Center for Emergent Matter Science (CEMS)
    University of Tokyo, 7-3-1, Hongo)

Abstract

Heating a system usually increases entropy and destroys order. However, there are also cases where heating gives a system the energy to overcome the potential barrier to reach a state with a nontrivial ordered pattern. Whether heating can manipulate the topological nature of the system is especially important. Here, we theoretically show by microsimulation that local heating can create topological magnetic textures, skyrmions, in a ferromagnetic background of chiral magnets and dipolar magnets. The resulting states depend sharply on intensity and spot size of heating, as well as the interaction to stabilize the skyrmions. Typically, the creation process is completed within 0.1 ns and 10 nm at the shortest time and smallest size, and these values can be longer and larger according to the choice of system. This finding will lead to the creation of skyrmions at will, which constitutes an important step towards their application to memory devices.

Suggested Citation

  • Wataru Koshibae & Naoto Nagaosa, 2014. "Creation of skyrmions and antiskyrmions by local heating," Nature Communications, Nature, vol. 5(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6148
    DOI: 10.1038/ncomms6148
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    Cited by:

    1. Yongsen Zhang & Jin Tang & Yaodong Wu & Meng Shi & Xitong Xu & Shouguo Wang & Mingliang Tian & Haifeng Du, 2024. "Stable skyrmion bundles at room temperature and zero magnetic field in a chiral magnet," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    2. Imara Lima Fernandes & Stefan Blügel & Samir Lounis, 2022. "Spin-orbit enabled all-electrical readout of chiral spin-textures," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    3. Fumiya Sekiguchi & Kestutis Budzinauskas & Prashant Padmanabhan & Rolf B. Versteeg & Vladimir Tsurkan & István Kézsmárki & Francesco Foggetti & Sergey Artyukhin & Paul H. M. Loosdrecht, 2022. "Slowdown of photoexcited spin dynamics in the non-collinear spin-ordered phases in skyrmion host GaV4S8," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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