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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