Proximity effect induced magnetism in graphene

ORAL

Abstract

Recent discovery of the 2D ferromagnetic insulators CrI3, Cr2Ge2Te6, and CrSiTe3 has spurred research in 2D magnetic materials. Van der Waals heterostructures of these materials with graphene can induce a nonzero magnetization in graphene by proximity. This also preserves the intrinsically high mobility of graphene, since no magnetic impurities are introduced to the system. Here, we employ nonlocal magneto-transport measurements to detect a magnetic proximity effect in graphene. Enhancement of this nonlocal signal indicates long-range magnetic order in graphene and provides a stepping stone towards observation of the quantum anomalous Hall effect at elevated temperatures.

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Presenters

  • Devashish Gopalan

    Carnegie Mellon University

Authors

  • Devashish Gopalan

    Carnegie Mellon University

  • Joe Seifert

    Carnegie Mellon University

  • Amanda Haglund

    University of Tennessee, Materials Science and Engineering, The University of Tennessee

  • David Mandrus

    Department of Materials Science and Engineering, The University of Tennessee, Oak Ridge National Lab, Oak Ridge National Laboratory, Department of Materials Science and Engineering, University of Tennessee, University of Tennessee, Materials Science and Technology, Oak Ridge National Laboratory, Materials Science and Engineering, The University of Tennessee, Materials Science and Engineering, University of Tennessee, Material Science and Technology Division, Oak Ridge National Laboratory, Oakridge National Laboratory, University of Tennessee, Knoxville, Univ of Tennessee, Knoxville

  • Marek Skowronski

    Carnegie Mellon University

  • Benjamin Hunt

    Carnegie Mellon University, Massachusetts Inst of Tech-MIT, Physics, Carnegie Mellon University