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Diameter-independent skyrmion Hall angle observed in chiral magnetic multilayers

Author

Listed:
  • Katharina Zeissler

    (University of Leeds
    National Physical Laboratory)

  • Simone Finizio

    (Paul Scherrer Institute)

  • Craig Barton

    (National Physical Laboratory)

  • Alexandra J. Huxtable

    (University of Leeds)

  • Jamie Massey

    (University of Leeds)

  • Jörg Raabe

    (Paul Scherrer Institute)

  • Alexandr V. Sadovnikov

    (Saratov State University)

  • Sergey A. Nikitov

    (Saratov State University
    Russian Academy of Sciences
    Moscow Institute of Physics and Technology)

  • Richard Brearton

    (University of Oxford
    Harwell Campus)

  • Thorsten Hesjedal

    (University of Oxford)

  • Gerrit Laan

    (Harwell Campus)

  • Mark C. Rosamond

    (University of Leeds)

  • Edmund H. Linfield

    (University of Leeds)

  • Gavin Burnell

    (University of Leeds)

  • Christopher H. Marrows

    (University of Leeds)

Abstract

Magnetic skyrmions are topologically non-trivial nanoscale objects. Their topology, which originates in their chiral domain wall winding, governs their unique response to a motion-inducing force. When subjected to an electrical current, the chiral winding of the spin texture leads to a deflection of the skyrmion trajectory, characterised by an angle with respect to the applied force direction. This skyrmion Hall angle is predicted to be skyrmion diameter-dependent. In contrast, our experimental study finds that the skyrmion Hall angle is diameter-independent for skyrmions with diameters ranging from 35 to 825 nm. At an average velocity of 6 ± 1 ms−1, the average skyrmion Hall angle was measured to be 9° ± 2°. In fact, the skyrmion dynamics is dominated by the local energy landscape such as materials defects and the local magnetic configuration.

Suggested Citation

  • Katharina Zeissler & Simone Finizio & Craig Barton & Alexandra J. Huxtable & Jamie Massey & Jörg Raabe & Alexandr V. Sadovnikov & Sergey A. Nikitov & Richard Brearton & Thorsten Hesjedal & Gerrit Laan, 2020. "Diameter-independent skyrmion Hall angle observed in chiral magnetic multilayers," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-14232-9
    DOI: 10.1038/s41467-019-14232-9
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    Cited by:

    1. Raphael Gruber & Jakub Zázvorka & Maarten A. Brems & Davi R. Rodrigues & Takaaki Dohi & Nico Kerber & Boris Seng & Mehran Vafaee & Karin Everschor-Sitte & Peter Virnau & Mathias Kläui, 2022. "Skyrmion pinning energetics in thin film systems," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. C. J. O. Reichhardt & C. Reichhardt, 2022. "Dynamic phases and reentrant Hall effect for vortices and skyrmions on periodic pinning arrays," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 95(8), pages 1-16, August.
    3. Takaaki Dohi & Markus Weißenhofer & Nico Kerber & Fabian Kammerbauer & Yuqing Ge & Klaus Raab & Jakub Zázvorka & Maria-Andromachi Syskaki & Aga Shahee & Moritz Ruhwedel & Tobias Böttcher & Philipp Pir, 2023. "Enhanced thermally-activated skyrmion diffusion with tunable effective gyrotropic force," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    4. Sheng Yang & Yuelei Zhao & Kai Wu & Zhiqin Chu & Xiaohong Xu & Xiaoguang Li & Johan Åkerman & Yan Zhou, 2023. "Reversible conversion between skyrmions and skyrmioniums," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    5. Weiwei Wang & Dongsheng Song & Wensen Wei & Pengfei Nan & Shilei Zhang & Binghui Ge & Mingliang Tian & Jiadong Zang & Haifeng Du, 2022. "Electrical manipulation of skyrmions in a chiral magnet," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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