Anisotropic Quantum Transport in Black Phosphorus Two-dimensional Hole Gas

ORAL

Abstract

High-mobility two-dimensional (2D) electron system in black phosphorus van der Waals heterostructures has provided a new platform for studying electron-electron interaction in 2D. In particular, the large anisotropy distinguishes black phosphorus from other high-mobility two-dimensional (2D) electron systems. Here, we observed that new anisotropic states emerge at fractional filling factors for spin-split Landau levels N > 4. The new states manifest as resistance maxima or minima when current flows in different directions. Our results indicate the formation of charge-density-wave stripe phase in black phosphorus 2D hole gas that is surprisingly robust against thermal fluctuation and impurity scattering.

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Presenters

  • Shuaifei Guo

    Fudan University

Authors

  • Fangyuan Yang

    University of California, Santa Barbara, Fudan University

  • Zuocheng Zhang

    Fudan University

  • Nai Zhou Wang

    University of Science and Technology of China

  • Shuaifei Guo

    Fudan University

  • hao wang

    Southern University of Science and Technology

  • Kenji Watanabe

    National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305 0044, Japan, Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, Advanced Materials Laboratory, National Institute for Materials Science, , 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, National Institute of Materials Science, NIMS, Japan, Advanced Materials Laboratory, NIMS, National Institute for Materials Science, Tsukuba, Japan, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science (NIMS), NIMS Tsukuba, National Institute for Materials Science (Japan), NIMS, National Institute for Material Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan, National Institute for Materials Science , Japan, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan., Advanced Materials Laboratory, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science, Tsukuba, Ibaraki 305- 0044, Japan, National Institute for Material Science - Japan, National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan, National Institute of Material Science, Advanced Material Lab, NIMS, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan, National Institute for Materials Science, Tsukuba, 1-1 Namiki, Tsukuba, National Institute for Materials Science, NIMS/Tsukuba, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044 Japan, National Institute for Materials Science, Namiki, 305-0044, Japan, National Institute for Material Science, Japan, Advanced Materials Laboratory, NIMS, Japan, Columbia University, Advanced Materials Labaratory, National Institute for Materials Science, National Institute of Material Science, 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan, National Institute of Materials Science, Japan

  • Takashi Taniguchi

    Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, Japan, National Institute for Materials Science (Japan), National Institute for Materials Science, NIMS, Kyoto University, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan., National Institute of Materials Science

  • Xin Wan

    Zhejiang University

  • Xianhui Chen

    University of Science and Technology of China, Department of physics, University of Science and Technology of China

  • Yuanbo Zhang

    Fudan University, State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Institute for Nanoelectronic Devices and Quantum Computing, Fudan University, Shanghai 200433, China, Dept. of Physics, Fudan University, Physics Department, Fudan University