Landau Velocity for Collective Quantum Hall Breakdown in Bilayer Graphene

ORAL

Abstract

Breakdown of the integer quantum Hall effect (QHE) is associated with an electric field approaching the inter-Landau-level (LL) Zener field, ratio of the Landau gap and the cyclotron radius. The intrinsic Zener limit, corresponding to critical drift velocity, is reported here [1] using high-mobility bilayer graphene and high-frequency shot noise [2] over a large number of LLs. The steep onset of shot noise at breakdown, exhibiting super-Poissonian Fano factors, shows that collective excitations arising from electron-electron interactions are essential. The breakdown mechanism can be described by a Landau critical velocity limited by the excitation of large momentum magneto-excitons, in analogy with the roton mechanism of superfluids [3]. The fractional QHE counterpart would involve magneto-rotons [4].

[1] W. Yang, H. Graef et al., Phys. Rev. Lett. 121, 136804 (2018)
[2] W. Yang et al., Nature Nanotech. 13, 47-52 (2018)
[3] L. Landau, Phys. Rev. 60, 356 (1941)
[4] S.M. Girvin, A.H. MacDonald and P.M. Platzman, Phys. Rev. B 33, 2481 (1986)

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Presenters

  • Holger Graef

    Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

Authors

  • Holger Graef

    Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Wei Yang

    Laboratoire Pierre Aigrain, Paris, France, ICFO

  • Xiaobo Lu

    Beijing National Laboratory for Condensed Matter Physics, Beijing, China, Chinese Academy of Science, Physics, Washington University in St. Louis

  • Guangyu Zhang

    Beijing National Laboratory for Condensed Matter Physics, Beijing, China, Chinese Academy of Science

  • Takashi Taniguchi

    National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 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, 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, NIMS, National Institute for Material Science, National Institute for Materials Science, Japan, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan, National Institute for Materials Science , 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, 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

  • 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

  • Adrian Bachtold

    ICFO, Barcelona, Spain, ICFO

  • Edwin Hang Tong Teo

    Nanyang Technological University, Singapore, School of Electrical and Electronic Engineering, Nanyang Technological University

  • Emmanuel Baudin

    Laboratoire Pierre Aigrain, Paris, France

  • Erwann Bocquillon

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS, PSL Research University, Université Pierre et Marie Curie, Sorbonne Universités, Université Denis Diderot, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Gwendal Fève

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure (Paris), Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • Jean-Marc Berroir

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS, PSL Research University, Université Pierre et Marie Curie, Sorbonne Universités, Université Denis Diderot, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure

  • David Carpentier

    ENS Lyon, Lyon, France

  • Mark Oliver Goerbig

    Université Paris Saclay, Orsay, France, University of Paris-Sud

  • Bernard Plaçais

    Laboratoire Pierre Aigrain, Ecole Normale Supérieure - CNRS, Laboratoire Pierre Aigrain, Paris, France, Laboratoire Pierre Aigrain, Ecole Normale Supérieure, CNRS, PSL Research University, Université Pierre et Marie Curie, Sorbonne Universités, Université Denis Diderot, Laboratoire Pierre Aigrain, CNRS - Ecole Normale Supérieure