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