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Reversible writing/deleting of magnetic skyrmions through hydrogen adsorption/desorption

Author

Listed:
  • Gong Chen

    (Georgetown University
    University of California)

  • Colin Ophus

    (NCEM, Molecular Foundry, Lawrence Berkeley National Laboratory)

  • Alberto Quintana

    (Georgetown University)

  • Heeyoung Kwon

    (Center for Spintronics, Korea Institute of Science and Technology)

  • Changyeon Won

    (Kyung Hee University)

  • Haifeng Ding

    (National Laboratory of Solid State Microstructures, Department of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

  • Yizheng Wu

    (State Key Laboratory of Surface Physics and Advanced Materials Laboratory, Fudan University)

  • Andreas K. Schmid

    (NCEM, Molecular Foundry, Lawrence Berkeley National Laboratory)

  • Kai Liu

    (Georgetown University
    University of California)

Abstract

Magnetic skyrmions are topologically nontrivial spin textures with envisioned applications in energy-efficient magnetic information storage. Toggling the presence of magnetic skyrmions via writing/deleting processes is essential for spintronics applications, which usually require the application of a magnetic field, a gate voltage or an electric current. Here we demonstrate the reversible field-free writing/deleting of skyrmions at room temperature, via hydrogen chemisorption/desorption on the surface of Ni and Co films. Supported by Monte-Carlo simulations, the skyrmion creation/annihilation is attributed to the hydrogen-induced magnetic anisotropy change on ferromagnetic surfaces. We also demonstrate the role of hydrogen and oxygen on magnetic anisotropy and skyrmion deletion on other magnetic surfaces. Our results open up new possibilities for designing skyrmionic and magneto-ionic devices.

Suggested Citation

  • Gong Chen & Colin Ophus & Alberto Quintana & Heeyoung Kwon & Changyeon Won & Haifeng Ding & Yizheng Wu & Andreas K. Schmid & Kai Liu, 2022. "Reversible writing/deleting of magnetic skyrmions through hydrogen adsorption/desorption," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28968-4
    DOI: 10.1038/s41467-022-28968-4
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    References listed on IDEAS

    as
    1. Dustin A. Gilbert & Justin Olamit & Randy K. Dumas & B. J. Kirby & Alexander J. Grutter & Brian B. Maranville & Elke Arenholz & Julie A. Borchers & Kai Liu, 2016. "Controllable positive exchange bias via redox-driven oxygen migration," Nature Communications, Nature, vol. 7(1), pages 1-8, April.
    2. Gong Chen & Tianping Ma & Alpha T. N’Diaye & Heeyoung Kwon & Changyeon Won & Yizheng Wu & Andreas K. Schmid, 2013. "Tailoring the chirality of magnetic domain walls by interface engineering," Nature Communications, Nature, vol. 4(1), pages 1-6, December.
    3. M. Bode & M. Heide & K. von Bergmann & P. Ferriani & S. Heinze & G. Bihlmayer & A. Kubetzka & O. Pietzsch & S. Blügel & R. Wiesendanger, 2007. "Chiral magnetic order at surfaces driven by inversion asymmetry," Nature, Nature, vol. 447(7141), pages 190-193, May.
    4. Julius Rojas & Alberto Quintana & Aitor Lopeandía & Joaquín Salguero & Beatriz Muñiz & Fatima Ibrahim & Mairbek Chshiev & Aliona Nicolenco & Maciej O. Liedke & Maik Butterling & Andreas Wagner & Veron, 2020. "Voltage-driven motion of nitrogen ions: a new paradigm for magneto-ionics," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
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