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Atomic-scale visualization of chiral charge density wave superlattices and their reversible switching

Author

Listed:
  • Xuan Song

    (Beijing Institute of Technology)

  • Liwei Liu

    (Beijing Institute of Technology)

  • Yaoyao Chen

    (Beijing Institute of Technology)

  • Han Yang

    (Beijing Institute of Technology)

  • Zeping Huang

    (Beijing Institute of Technology)

  • Baofei Hou

    (Beijing Institute of Technology)

  • Yanhui Hou

    (Beijing Institute of Technology)

  • Xu Han

    (Beijing Institute of Technology)

  • Huixia Yang

    (Beijing Institute of Technology)

  • Quanzhen Zhang

    (Beijing Institute of Technology)

  • Teng Zhang

    (Beijing Institute of Technology)

  • Jiadong Zhou

    (Beijing Institute of Technology)

  • Yuan Huang

    (Beijing Institute of Technology)

  • Yu Zhang

    (Beijing Institute of Technology)

  • Hong-Jun Gao

    (Chinese Academy of Sciences)

  • Yeliang Wang

    (Beijing Institute of Technology)

Abstract

Chirality is essential for various phenomena in life and matter. However, chirality and its switching in electronic superlattices, such as charge density wave (CDW) superlattices, remain elusive. In this study, we characterize the chirality switching with atom-resolution imaging in a single-layer NbSe2 CDW superlattice by the technique of scanning tunneling microscopy. The atomic arrangement of the CDW superlattice is found continuous and intact although its chirality is switched. Several intermediate states are tracked by time-resolved imaging, revealing the fast and dynamic chirality transition. Importantly, the switching is reversibly realized with an external electric field. Our findings unveil the delicate switching process of chiral CDW superlattice in a two-dimensional (2D) crystal down to the atomic scale.

Suggested Citation

  • Xuan Song & Liwei Liu & Yaoyao Chen & Han Yang & Zeping Huang & Baofei Hou & Yanhui Hou & Xu Han & Huixia Yang & Quanzhen Zhang & Teng Zhang & Jiadong Zhou & Yuan Huang & Yu Zhang & Hong-Jun Gao & Yel, 2022. "Atomic-scale visualization of chiral charge density wave superlattices and their reversible switching," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29548-2
    DOI: 10.1038/s41467-022-29548-2
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    Cited by:

    1. Samra Husremović & Berit H. Goodge & Matthew P. Erodici & Katherine Inzani & Alberto Mier & Stephanie M. Ribet & Karen C. Bustillo & Takashi Taniguchi & Kenji Watanabe & Colin Ophus & Sinéad M. Griffi, 2023. "Encoding multistate charge order and chirality in endotaxial heterostructures," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Quanzhen Zhang & Wen-Yu He & Yu Zhang & Yaoyao Chen & Liangguang Jia & Yanhui Hou & Hongyan Ji & Huixia Yang & Teng Zhang & Liwei Liu & Hong-Jun Gao & Thomas A. Jung & Yeliang Wang, 2024. "Quantum spin liquid signatures in monolayer 1T-NbSe2," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Yan Zhao & Zhengwei Nie & Hao Hong & Xia Qiu & Shiyi Han & Yue Yu & Mengxi Liu & Xiaohui Qiu & Kaihui Liu & Sheng Meng & Lianming Tong & Jin Zhang, 2023. "Spectroscopic visualization and phase manipulation of chiral charge density waves in 1T-TaS2," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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