Interferences and Fabry-Perot Oscillations in ABA Trilayer Graphene

ORAL

Abstract

ABA trilayer graphene (TLG) is a 2D system with multiple sub-bands which can be divided into one monolayer graphene-like sub-band and one bilayer graphene-like sub-band, therefore comprising a system wherein massive and massless bands coexist. Here, we study electronic transmission in the ballistic regime through a 70nm-wide tunable electrostatic potential barrier on exfoliated ABA trilayer graphene encapsulated by hexagonal Boron Nitride. We report Fabry-Perot oscillations of the conductance caused by multiple reflections of the charges in the potential barrier, and we also present a study of their magneto dependence.

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Authors

  • Leonardo Cristiano Campos

    • Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 USA

  • Kawin Surakitbovorn

    • Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 USA

  • Kenji Watanabe

    • National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

  • Takashi Taniguchi

    • National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

  • Pablo Jarillo-Herrero

    • MIT
    • Massachusetts Institute of Techology
    • Physics Department, MIT, Cambridge, MA
    • Department of Physics, MIT, Cambridge, USA
    • Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
    • Massachusetts Institute of Technology