Quantum Transport in Double-gated Trilayer Graphene \textit{pnp} Junctions

ORAL

Abstract

Using trilayer graphene \textit{pnp} junctions with suspended top gates, we perform transport measurements. At a magnetic field B=0, by an applied perpendicular electric field, the conductance is increased that it is suggestive of a semi-metallic band overlap. At B=8T we observe quantum Hall conductance with fractional values, which can be explained equilibration of edge state between differentially-doped regions, and the presence of an insulating state at filling factor $\nu $=0.

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Authors

  • Yongjin Lee

    • Department of Physics and Astronomy, University of California, Riverside

  • Jairo Velasco Jr.

    • Department of Physics and Astronomy, University of California, Riverside

  • Lei Jing

    • Department of Physics and Astronomy, University of California, Riverside

  • Wenzhong Bao

    • Department of Physics and Astronomy, University of California, Riverside

  • David Tran

    • Department of Physics and Astronomy, University of California, Riverside

  • Marc Bockrath

    • Department of Physics and Astronomy, University of California, Riverside

  • Chun Ning (Jeanie) Lau

    • Department of Physics and Astronomy, University of California, Riverside