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.

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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