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Néel-type skyrmion in WTe2/Fe3GeTe2 van der Waals heterostructure

Author

Listed:
  • Yingying Wu

    (University of California—Los Angeles)

  • Senfu Zhang

    (King Abdullah University of Science and Technology)

  • Junwei Zhang

    (King Abdullah University of Science and Technology)

  • Wei Wang

    (Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University)

  • Yang Lin Zhu

    (Pennsylvania State University)

  • Jin Hu

    (University of Arkansas)

  • Gen Yin

    (University of California—Los Angeles)

  • Kin Wong

    (University of California—Los Angeles)

  • Chi Fang

    (Chinese Academy of Sciences)

  • Caihua Wan

    (Chinese Academy of Sciences)

  • Xiufeng Han

    (Chinese Academy of Sciences)

  • Qiming Shao

    (University of California—Los Angeles)

  • Takashi Taniguchi

    (National Institute for Materials Science)

  • Kenji Watanabe

    (National Institute for Materials Science)

  • Jiadong Zang

    (University of New Hampshire)

  • Zhiqiang Mao

    (Pennsylvania State University)

  • Xixiang Zhang

    (King Abdullah University of Science and Technology)

  • Kang L. Wang

    (University of California—Los Angeles)

Abstract

The promise of high-density and low-energy-consumption devices motivates the search for layered structures that stabilize chiral spin textures such as topologically protected skyrmions. At the same time, recently discovered long-range intrinsic magnetic orders in the two-dimensional van der Waals materials provide a new platform for the discovery of novel physics and effects. Here we demonstrate the Dzyaloshinskii–Moriya interaction and Néel-type skyrmions are induced at the WTe2/Fe3GeTe2 interface. Transport measurements show the topological Hall effect in this heterostructure for temperatures below 100 K. Furthermore, Lorentz transmission electron microscopy is used to directly image Néel-type skyrmion lattice and the stripe-like magnetic domain structures as well. The interfacial coupling induced Dzyaloshinskii–Moriya interaction is estimated to have a large energy of 1.0 mJ m−2. This work paves a path towards the skyrmionic devices based on van der Waals layered heterostructures.

Suggested Citation

  • Yingying Wu & Senfu Zhang & Junwei Zhang & Wei Wang & Yang Lin Zhu & Jin Hu & Gen Yin & Kin Wong & Chi Fang & Caihua Wan & Xiufeng Han & Qiming Shao & Takashi Taniguchi & Kenji Watanabe & Jiadong Zang, 2020. "Néel-type skyrmion in WTe2/Fe3GeTe2 van der Waals heterostructure," Nature Communications, Nature, vol. 11(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17566-x
    DOI: 10.1038/s41467-020-17566-x
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    Cited by:

    1. Yongxi Ou & Wilson Yanez & Run Xiao & Max Stanley & Supriya Ghosh & Boyang Zheng & Wei Jiang & Yu-Sheng Huang & Timothy Pillsbury & Anthony Richardella & Chaoxing Liu & Tony Low & Vincent H. Crespi & , 2022. "ZrTe2/CrTe2: an epitaxial van der Waals platform for spintronics," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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