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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.

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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