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Electrical manipulation of skyrmions in a chiral magnet

Author

Listed:
  • Weiwei Wang

    (Anhui University
    Chinese Academy of Sciences)

  • Dongsheng Song

    (Anhui University)

  • Wensen Wei

    (Chinese Academy of Sciences)

  • Pengfei Nan

    (Anhui University)

  • Shilei Zhang

    (ShanghaiTech University)

  • Binghui Ge

    (Anhui University)

  • Mingliang Tian

    (Chinese Academy of Sciences
    University of Science and Technology of China
    Anhui University)

  • Jiadong Zang

    (University of New Hampshire
    University of New Hampshire
    University of Cologne)

  • Haifeng Du

    (Anhui University
    Chinese Academy of Sciences
    University of Science and Technology of China)

Abstract

Writing, erasing and computing are three fundamental operations required by any working electronic device. Magnetic skyrmions could be essential bits in promising in emerging topological spintronic devices. In particular, skyrmions in chiral magnets have outstanding properties like compact texture, uniform size, and high mobility. However, creating, deleting, and driving isolated skyrmions, as prototypes of aforementioned basic operations, have been a grand challenge in chiral magnets ever since the discovery of skyrmions, and achieving all these three operations in a single device is even more challenging. Here, by engineering chiral magnet Co8Zn10Mn2 into the customized micro-devices for in-situ Lorentz transmission electron microscopy observations, we implement these three operations of skyrmions using nanosecond current pulses with a low current density of about 1010 A·m−2 at room temperature. A notched structure can create or delete magnetic skyrmions depending on the direction and magnitude of current pulses. We further show that the magnetic skyrmions can be deterministically shifted step-by-step by current pulses, allowing the establishment of the universal current-velocity relationship. These experimental results have immediate significance towards the skyrmion-based memory or logic devices.

Suggested Citation

  • 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.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29217-4
    DOI: 10.1038/s41467-022-29217-4
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    References listed on IDEAS

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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. Yihao Wang & Zhihao Li & Xuan Luo & Jingjing Gao & Yuyan Han & Jialiang Jiang & Jin Tang & Huanxin Ju & Tongrui Li & Run Lv & Shengtao Cui & Yingguo Yang & Yuping Sun & Junfa Zhu & Xingyu Gao & Wenjia, 2024. "Dualistic insulator states in 1T-TaS2 crystals," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    3. Dongsheng Song & Weiwei Wang & Shuisen Zhang & Yizhou Liu & Ning Wang & Fengshan Zheng & Mingliang Tian & Rafal E. Dunin-Borkowski & Jiadong Zang & Haifeng Du, 2024. "Steady motion of 80-nm-size skyrmions in a 100-nm-wide track," Nature Communications, Nature, vol. 15(1), pages 1-8, 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. Yao Guang & Xichao Zhang & Yizhou Liu & Licong Peng & Fehmi Sami Yasin & Kosuke Karube & Daisuke Nakamura & Naoto Nagaosa & Yasujiro Taguchi & Masahito Mochizuki & Yoshinori Tokura & Xiuzhen Yu, 2024. "Confined antiskyrmion motion driven by electric current excitations," Nature Communications, Nature, vol. 15(1), pages 1-8, December.

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