Fractional Quantum Hall effect in Ultra-high Quality Few-layer Black Phosphorus Transistors

ORAL

Abstract

Black phosphorus(BP), as the only non-carbon elemental layered allotrope, has been investigated intensively because of its possession of high mobility and tunable gap. Here we report the fabrication of few-layer BP field effect transistor with mobility up to 55,000 cm2/Vs, and observation of two fractional QH states at filling factors n ~ -4/3 and -0.56 ± 0.1, underscoring BP as a tunable 2D platform for exploring electron interactions.

*This work is supported by NSF/ECCS 1509958. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by National Science Foundation Cooperative Agreement No. DMR-1157490 and the State of Florida. K.W. and T.T. acknowledge support from the Elemental Strategy

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Presenters

  • Jiawei Yang

    • The Ohio State University

Authors

  • Jiawei Yang

    • The Ohio State University

  • Son Tran

    • Physics, The Ohio State University
    • The Ohio State University

  • Shi Che

    • The Ohio State University
    • Ohio State Univ - Columbus

  • Takashi Taniguchi

    • National Institute for Materials Science
    • NIMS
    • National Institute for Material Science
    • Advanced Materials Laboratory, National Institute for Materials Science
    • National Institute of Materials Science
    • Research Center for Functional Materials, National Institute for Materials Science
    • National Institute for Materials Science (NIMS
    • Advanced Materials Laboratory, NIMS
    • National Institute for Materials Science, Advanced Materials Laboratory
    • National Institue for Materials Science
    • National Institute of Material Science
    • National Institute for Matericals Science
    • Advanced Materials Laboratory
    • National Institute for Materials Science, 1-1 Namiki
    • NIMS-Japan

  • Kenji Watanabe

    • National Institute for Materials Science
    • NIMS
    • National Institute for Material Science
    • Advanced Materials Laboratory, National Institute for Materials Science
    • National Institute of Materials Science
    • Research Center for Functional Materials, National Institute for Materials Science
    • National Institute for Materials Science (NIMS
    • Advanced Materials Laboratory, NIMS
    • National Institute for Materials Science, Advanced Materials Laboratory
    • National Institue for Materials Science
    • National Institute of Material Science
    • National Institute for Matericals Science
    • Advanced Materials Laboratory
    • National Institute for Materials Science, 1-1 Namiki
    • Advanced materials laboratory, National institute for Materials Science
    • NIMS-Japan

  • Hongwoo Baek

    • National High Magnetic Field Laboratory

  • Dmitry Smirnov

    • 1800 East Paul Dirac Drive, Natl High Magnetic Field Lab
    • Natl High Magnetic Field Lab
    • National High Magnetic Field Laboratory
    • NHMFL
    • Condensed Matter Science, National High Magnetic Field Laboratory
    • NHMFL, FSU

  • Ruoyu Chen

    • Physics, The Ohio State University
    • The Ohio State University
    • Physics, Ohio State University

  • Chun Ning Lau

    • Physics, Ohio State Univ - Columbus
    • Ohio State Univ - Columbus
    • The Ohio State University
    • Physics, The Ohio State University