Observation of Hysteresis in Rhombohedral-Stacked Trilayer Graphene

ORAL

Abstract

Few-layer graphene is an attractive platform for exploration of physical processes~confined to two dimensions. Diverging density of states in rhombohedral-stacked~trilayer graphene (r-TLG) leads to strong electronic correlation. Recently an intrinsic insulating phase with 40 meV gap has been observed at charge~neutrality point (CNP) in r-TLG, which is consistent with an layer antiferromagnetic state.~By using~dual-gated suspended r-TLG device, we observe hysteresis loops in conductance in the~vicinity of CNP, which suggests the possible evidence of spontaneous spin polarization or presence of domains with different anomalous Hall conductivities.

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Authors

  • Shi Che

    • University of California, Riverside

  • Yongjin Lee

    • University of California, Riverside

  • Yanmeng Shi

    • University of California, Riverside

  • Kevin Myhro

    • University of California, Riverside

  • Timothy Espiritu

    • University of California, Riverside

  • David Tran

    • University of California, Riverside

  • Jairo Velasco

    • University of California, Riverside

  • Yafis Barlas

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

  • Chun Ning Lau

    • University of California, Riverside
    • Univ of California - Riverside