Electrical transport in graphene-based systems with tunable Coulomb interaction

ORAL

Abstract

Coulomb interaction is one of the key mechanisms in low-dimensional physics, which gives abundant phase diagrams with broken-symmetry states. Such broken-symmetry states have been reported in SrTiO3 supported monolayer graphene. However, it is yet to be achieved to tune Coulomb interaction continuously in low-dimensional system, and to explore the phase diagram in more complicated systems. Here, we experimentally study graphene-based systems on ferroelectric Y-doped HfO2 substrate. In this talk, I will present our latest discoveries on the electronic properties in graphene systems with tunable Coulomb interaction.

–

Presenters

  • Xueshi Gao

    • Ohio State University

Authors

  • Xueshi Gao

    • Ohio State University

  • Xin Li

    • University of Nebraska - Lincoln

  • Kenji Watanabe

    • National Institute for Materials Science
    • Research Center for Functional Materials, National Institute of Materials Science
    • Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan
    • NIMS
    • Research Center for Functional Materials, National Institute for Materials Science
    • National Institute for Materials Science, Japan
    • Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Japan
    • NIMS Japan

  • Takashi Taniguchi

    • National Institute for Materials Science
    • Kyoto Univ
    • International Center for Materials Nanoarchitectonics, National Institute of Materials Science
    • Kyoto University
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • National Institute for Materials Science, Japan
    • National Institute For Materials Science
    • NIMS
    • National Institute for Material Science
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan
    • NIMS Japan

  • Xiaoshan Xu

    • University of Nebraska - Lincoln
    • Department of Physics and Astronomy and the Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln

  • Chun Ning Lau

    • Ohio State Univ - Columbus