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Light-driven dancing of nematic colloids in fractional skyrmions and bimerons

Author

Listed:
  • Zhawure Asilehan

    (University of Science and Technology of China)

  • Wentao Tang

    (Kowloon)

  • Jing Zhang

    (University of Science and Technology of China)

  • Zijun Chen

    (University of Science and Technology of China)

  • Ruijie Wang

    (University of Science and Technology of China)

  • Qingtian Shi

    (University of Science and Technology of China)

  • Ganlin Song

    (University of Science and Technology of China)

  • Jinghua Jiang

    (University of Science and Technology of China)

  • Rui Zhang

    (Kowloon)

  • Chenhui Peng

    (University of Science and Technology of China)

Abstract

Materials with full and fractional skyrmions are important for fundamental studies and can be applied as information carriers for applications in spintronics or skyrmionics. However, creation, direct optical observation and manipulation of different skyrmion textures remain challenging. Besides, how the transformation of skyrmion textures directs the dynamics of colloids is not well understood. Here, we use experiments, simulations and theory to demonstrate that fractional skyrmion and bimeron strings can be created in a nematic liquid crystal (LC) through incompatible interfaced topological patterns. Moreover, distinct topological profiles are realized in the same skyrmion string loop. The light-actuated transformations of fractional skyrmion textures in both straight and loop geometry drive colloidal assemblies to exhibit exotic dynamic behaviors. Finally, fractional skyrmions with arbitrary shapes can be used as templates for a variety of exquisite colloidal assemblies. This work provides opportunities for designing new smart material to control self-assembly and transport of colloids.

Suggested Citation

  • Zhawure Asilehan & Wentao Tang & Jing Zhang & Zijun Chen & Ruijie Wang & Qingtian Shi & Ganlin Song & Jinghua Jiang & Rui Zhang & Chenhui Peng, 2025. "Light-driven dancing of nematic colloids in fractional skyrmions and bimerons," Nature Communications, Nature, vol. 16(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-56263-5
    DOI: 10.1038/s41467-025-56263-5
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