Strong Correlated States in WSe<sub>2</sub>/WS<sub>2</sub> Moiré Superlattices

ORAL

Abstract

Transition metal dichalcogenide (TMD) moiré systems provide a highly tunable platform to study strong electronic correlated states. Recently, fractional filling states have been observed in WSe2/WS2 moiré superlattices with unconventional optical techniques, scanning tunneling microscopy (STM) and scanning microwave impedance microscopy (MIM). However, few electrical-transport and capacitance studies have been reported on this system due to the large contact resistance that exists at metal-TMD junctions. Here, we performed measurements on aligned WSe2/WS2 heterostructures. Our study provides a new technique to explore long-range strong interactions in TMD moiré superlattices.

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Presenters

  • Yinjie Guo

    • Columbia University
    • Columbia Unviersity

Authors

  • Yinjie Guo

    • Columbia University
    • Columbia Unviersity

  • Jordan Pack

    • Columbia University

  • Qianhui Shi

    • Columbia University

  • Yusong Bai

    • Brown University

  • Song Liu

    • Columbia University

  • Jiaqiang Yan

    • Oak Ridge National Laboratory
    • Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

  • Kenji Watanabe

    • National Institute for Materials Science
    • Research Center for Functional Materials, National Institute of Materials Science
    • Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan
    • NIMS
    • Research Center for Functional Materials, National Institute for Materials Science
    • National Institute for Materials Science, Japan
    • Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Japan
    • NIMS Japan

  • Takashi Taniguchi

    • National Institute for Materials Science
    • Kyoto Univ
    • International Center for Materials Nanoarchitectonics, National Institute of Materials Science
    • Kyoto University
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • National Institute for Materials Science, Japan
    • National Institute For Materials Science
    • NIMS
    • National Institute for Material Science
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
    • NIMS Japan

  • David G Mandrus

    • University of Tennessee
    • Oak Ridge National Laboratory

  • Xiaoyang Zhu

    • Columbia University
    • Department of Chemistry, Columbia 424 University, New York, New York 10027, United States

  • James C Hone

    • Columbia University

  • Cory R Dean

    • Columbia Univ
    • Columbia University