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Electric Field-Induced Creation and Directional Motion of Domain Walls and Skyrmion Bubbles.

Author information

Affiliations

  • 1. Department of Electrical and Computer Engineering , Shinshu University , 4-17-1 Wakasato , Nagano 380-8553 , Japan.
      Authors
    • Ma C 1
    • Morisako A 1
    • Liu X 1
    (3 authors)
  • 2. School of Science and Engineering , The Chinese University of Hong Kong , Shenzhen , Guangdong 518172 , China.
      Authors
    • Zhang X 2
    • Xia J 2
    • Zhou Y 2
    (3 authors)
  • 3. Department of Applied Physics , The University of Tokyo , 7-3-1 Hongo , Tokyo 113-8656 , Japan.
      Authors
    • Ezawa M 3
    (1 author)
  • 4. State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics , Tsinghua University , Beijing 100084 , China.
      Authors
    • Jiang W 4
    (1 author)
  • 5. Institute for Chemical Research , Kyoto University , Gokasho, Uji , Kyoto 611-0011 , Japan.
      Authors
    • Ono T 5
    (1 author)
    • Show all (6)

ORCIDs linked to this article

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Nano Letters, 17 Dec 2018, 19(1):353-361
https://doi.org/10.1021/acs.nanolett.8b03983 PMID: 30537837 

Abstract 

Magnetization dynamics driven by an electric field could provide long-term benefits to information technologies because of its ultralow power consumption. Meanwhile, the Dzyaloshinskii-Moriya interaction in interfacially asymmetric multilayers consisting of ferromagnetic and heavy-metal layers can stabilize topological spin textures, such as chiral domain walls, skyrmions, and skyrmion bubbles. These topological spin textures can be controlled by an electric field and hold promise for building advanced spintronic devices. Here, we present an experimental and numerical study on the electric field-induced creation and directional motion of topological spin textures in magnetic multilayer films and racetracks with thickness gradient and interfacial Dzyaloshinskii-Moriya interaction at room temperature. We find that the electric field-induced directional motion of chiral domain wall is accompanied by the creation of skyrmion bubbles at certain conditions. We also demonstrate that the electric field variation can induce motion of skyrmion bubbles. Our findings may provide opportunities for developing skyrmion-based devices with ultralow power consumption.

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Read article at publisher's site: https://doi.org/10.1021/acs.nanolett.8b03983

Read article for free, from open access legal sources, via Unpaywall: http://arxiv.org/pdf/1708.02023Unpaywall

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Funding 

Funders who supported this work.

Beijing Innovation Center For Future Chip, Tsinghua University

    Central Committee of the Communist Party of China

      Chinese University of Hong Kong

        Core Research for Evolutional Science and Technology (2)

        Japan Society for the Promotion of Science (7)

        Ministry of Science and Technology of the People's Republic of China (2)

        Nanyang Technological University

          National Natural Science Foundation of China (3)

          Shenzhen Science, Technology and Innovation Commission (2)

          State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University