Transport Properties of a Few-layer Rhombohedral-stacked Graphene

ORAL

Abstract

Recently, two-dimensional systems that host flat bands have been extensively investigated experimentally and theoretically, due to the intriguing correlation effects as a result of large density of states. In a few-layer rhombohedral-stacked graphene, the dispersionless flat band localised at the outer surfaces is a promising candidate to realise such strong correlation physics. In this talk, I will present our preliminary data on the electrical transport in a few-layer rhombohedral-stacked graphene. We found that a gap is opened at the surfaces when a displacement field exceeds a threshold value. In a magnetic field we found robust quantum oscillations suggesting the high electronic quality of the observed flat-band surface states.

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Presenters

  • Yanmeng Shi

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

Authors

  • Yanmeng Shi

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

  • Yaping Yang

    • School of Physics and Astronomy, University of Manchester

  • Servet Canozdemir

    • School of Physics and Astronomy, University of Manchester

  • Seok-Kyun Son

    • School of Physics and Astronomy, University of Manchester

  • Shuigang Xu

    • School of Physics and Astronomy, University of Manchester
    • School of Physics, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom

  • Jun Yin

    • School of Physics and Astronomy, University of Manchester
    • School of physics and astronomy, the University of Manchester
    • Physics and Astronomy, The University of Manchester

  • Sergey Slizovskiy

    • School of Physics and Astronomy, University of Manchester
    • School of physics and astronomy, the University of Manchester

  • Artem Mishchenko

    • School of Physics and Astronomy, University of Manchester
    • School of physics and astronomy, the University of Manchester
    • Physics and Astronomy, The University of Manchester
    • School of Physics & Astronomy, University of Manchester