Quantum transport study of large-angle twisted MoTe<sub>2</sub>

ORAL

Abstract

Recent studies of twisted molybdenum ditelluride (MoTe2) have opened new avenues for exploring correlated topological quantum states. Previous experimental works have mainly focused on the small twisted angle case, with twisted angle about 2 to 4 degree. In this talk, we will present the transport results of twisted MoTe2 with larger twisted angles, up to 5.5 degree. We have revealed the evolution of the van Hove singularities, the quantum anomalous Hall effect, orbital magnetism, as well as other topological and correlated quantum states, as the twist angle increases. We will also present transport results of high-quality monolayer MoTe2 device made by flux-grown single crystals, with the maximum Hall mobility of 16,000 cm²/V·s at low temperatures.

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Presenters

  • Jiayi Li

    • Shanghai Jiaotong Univ
    • Shanghai Jiao Tong Univesity

Authors

  • Jiayi Li

    • Shanghai Jiaotong Univ
    • Shanghai Jiao Tong Univesity

  • Zheng Sun

    • Shanghai Jiao Tong Univ
    • School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
    • Shanghai Jiao Tong Univesity

  • Fan Xu

    • SJTU

  • Tongtong JIA

    • Shanghai Jiao Tong Univ
    • Shanghai Jiao Tong Univesity

  • Jingjing Gao

    • Fudan University

  • Ce ZHENG

    • The Hong Kong University of Science and Technology (HKUST)

  • Cheng Xu

    • University of Tennessee
    • Tsinghua University

  • Kenji Watanabe

    • National Institute for Materials Science
    • Research Center for Functional Materials, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan

  • Takashi Taniguchi

    • National Institute for Materials Science
    • Research Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • International Center for Materials Nanoarchitectonics, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
    • Research Center for Functional Materials, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan

  • Yang Zhang

    • University of Tennessee

  • Shiming Lei

    • The Hong Kong University of Science and Technology
    • Hong Kong University of Science and Technology

  • Yuanbo Zhang

    • Fudan Univ

  • Xiaoxue Liu

    • Shanghai Jiao Tong Univ
    • Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai,China
    • Shanghai Jiao Tong Univesity

  • Tingxin Li

    • Shanghai Jiao Tong Univ
    • School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
    • Shanghai Jiao Tong Univesity