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Ionic liquid gating induced self-intercalation of transition metal chalcogenides

Author

Listed:
  • Fei Wang

    (Tsinghua University)

  • Yang Zhang

    (Tsinghua University)

  • Zhijie Wang

    (Tsinghua University)

  • Haoxiong Zhang

    (Tsinghua University)

  • Xi Wu

    (Tsinghua University)

  • Changhua Bao

    (Tsinghua University)

  • Jia Li

    (Tsinghua University)

  • Pu Yu

    (Tsinghua University
    Frontier Science Center for Quantum Information)

  • Shuyun Zhou

    (Tsinghua University
    Frontier Science Center for Quantum Information)

Abstract

Ionic liquids provide versatile pathways for controlling the structures and properties of quantum materials. Previous studies have reported electrostatic gating of nanometer-thick flakes leading to emergent superconductivity, insertion or extraction of protons and oxygen ions in perovskite oxide films enabling the control of different phases and material properties, and intercalation of large-sized organic cations into layered crystals giving access to tailored superconductivity. Here, we report an ionic-liquid gating method to form three-dimensional transition metal monochalcogenides (TMMCs) by driving the metals dissolved from layered transition metal dichalcogenides (TMDCs) into the van der Waals gap. We demonstrate the successful self-intercalation of PdTe2 and NiTe2, turning them into high-quality PdTe and NiTe single crystals, respectively. Moreover, the monochalcogenides exhibit distinctive properties from dichalcogenides. For instance, the self-intercalation of PdTe2 leads to the emergence of superconductivity in PdTe. Our work provides a synthesis pathway for TMMCs by means of ionic liquid gating driven self-intercalation.

Suggested Citation

  • Fei Wang & Yang Zhang & Zhijie Wang & Haoxiong Zhang & Xi Wu & Changhua Bao & Jia Li & Pu Yu & Shuyun Zhou, 2023. "Ionic liquid gating induced self-intercalation of transition metal chalcogenides," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40591-5
    DOI: 10.1038/s41467-023-40591-5
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    1. Mingzhe Yan & Huaqing Huang & Kenan Zhang & Eryin Wang & Wei Yao & Ke Deng & Guoliang Wan & Hongyun Zhang & Masashi Arita & Haitao Yang & Zhe Sun & Hong Yao & Yang Wu & Shoushan Fan & Wenhui Duan & Sh, 2017. "Lorentz-violating type-II Dirac fermions in transition metal dichalcogenide PtTe2," Nature Communications, Nature, vol. 8(1), pages 1-6, December.
    2. Xiaoxu Zhao & Peng Song & Chengcai Wang & Anders C. Riis-Jensen & Wei Fu & Ya Deng & Dongyang Wan & Lixing Kang & Shoucong Ning & Jiadong Dan & T. Venkatesan & Zheng Liu & Wu Zhou & Kristian S. Thyges, 2020. "Engineering covalently bonded 2D layered materials by self-intercalation," Nature, Nature, vol. 581(7807), pages 171-177, May.
    3. Chen Wang & Qiyuan He & Udayabagya Halim & Yuanyue Liu & Enbo Zhu & Zhaoyang Lin & Hai Xiao & Xidong Duan & Ziying Feng & Rui Cheng & Nathan O. Weiss & Guojun Ye & Yun-Chiao Huang & Hao Wu & Hung-Chie, 2018. "Monolayer atomic crystal molecular superlattices," Nature, Nature, vol. 555(7695), pages 231-236, March.
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