Electrical transport in graphene on high-k substrates

ORAL

Abstract

Graphene is an intriguing platform for studying correlated physics. Recently, in various graphene-based systems, a number of correlated phases are reported, such as unconventional superconductivity, correlated insulating state, Chern insulator, and magnetism. Despite a plethora of studies, the effect of Coulomb interactions on the various phases remains elusive. In this experiment, we study graphene-based systems on SrTiO3 substrate, which is a high-k dielectric with ferroelectric-like surfaces. Latest results will be discussed with comparison to devices on BN/SiO2 substrates.

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Presenters

  • Xueshi Gao

    • Ohio State University

Authors

  • Xueshi Gao

    • Ohio State University

  • Kenji Watanabe

    • National Institute for Materials Science
    • NIMS
    • Research Center for Electronic and Optical Materials, National Institute for Materials Science
    • Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Material Science

  • Takashi Taniguchi

    • Kyoto Univ
    • National Institute for Materials Science
    • Research Center for Materials Nanoarchitectonics
    • Research Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • National Institute for Materials Sciences
    • NIMS
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • National Institute for Material Science
    • International Center for Materials Nanoarchitectonics, NIMS, Japan
    • International Center for Materials Nanoarchitectonics, Tsukuba
    • National Institue for Materials Science
    • Kyoto University
    • National Institute of Materials Science
    • International Center for Materials Nanoarchitectonics and National Institute for Materials Science

  • Chun Ning Lau

    • Ohio State University
    • Ohio State Univ - Columbus