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Nonlinear Hall effect in Bernal Bilayer graphene revealed with angle-resolved transport measurements

ORAL

Abstract

Angle-resolved transport measurement is a powerful experimental tool to extract information about the material's linear and nonlinear conductivity tensors. Recently, we developed a procedure for extracting nonlinear conductivity tensors from nonlinear electrostatic potential measurements in disk-shaped samples. Applying our extraction procedure to measurements of nonlinear potential in Bernal Bilayer Graphene, we reveal the structure of the full nonlinear conductivity tensor and observe a prominent Nonlinear Hall Effect. Our results severely constrain the microscopic origins of the observed nonlinear response.

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Presenters

  • Dmitry V Chichinadze

    National High Magnetic Field Laboratory

Authors

  • Dmitry V Chichinadze

    National High Magnetic Field Laboratory

  • Naiyuan J Zhang

    Brown University

  • Jiang-Xiazi Lin

    Brown University

  • Yibang Ben Wang

    Brown University

  • Xiaoyu Wang

    National High Magnetic Field Laboratory

  • Kenji Watanabe

    National Institute for Materials Science, NIMS, Research Center for Functional Materials, National Institute for Materials Science, Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, Research Center for Functional Materials, National Institute of Material Science, Tsukuba, Japan, National Institute of Materials Science, Advanced Materials Laboratory, National Institute for Materials Science

  • Takashi Taniguchi

    National Institute for Materials Science, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, International Center for Materials Nanoarchitectonics, National Institute of Material Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science

  • J.I.A. Li

    Brown University

  • Oskar Vafek

    Florida State University