Broken Symmetry States in Dual Gated Rhombohedral Trilayer Graphen

ORAL

Abstract

We perform low temperature transport measurements of dual-gated rhombohedral-stacked trilayer graphene device. At the charge neutral point, we observe a giant interaction-induced gap, $\sim$ 41mV that is suppressed by an interlayer potential or a critical temperature Tc $\sim$ 28K, suggesting a layer antiferromagnetic ground state with broken time reversal symmetry. In the quantum Hall regime, we observe~QH plateaus at filling factors $\nu =$0, 1, 2 and 3 in a high magnetic field.

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Authors

  • Yongjin Lee

    No Company Provided

  • David Tran

    University of California, Riverside

  • Kevin Myhro

    UCR Dept. of Physics and Astronomy, University of California, Riverside

  • Jairo Velasco Jr.

    University of California, Riverside

  • Nathaniel Gillgren

    University of California, Riverside

  • Chung Ning Lau

    UCR Dept. of Physics and Astronomy, University of California, Riverside

  • Yafis Barlas

    University of California, Riverside

  • Jean-Marie Poumirol

    National High Magnetic Field Laboratory

  • Dmitry Smirnov

    FSU and NHMFL, Florida, National High Magnetic Field Laboratory, NHMFL and FSU, Tallahassee, FL

  • Francisco Guinea

    ICMM-CSIC