Reconfigurable Nanoscale Control of the Charge Neutrality Point of graphene

ORAL

Abstract


Nano-engineered graphene devices can exhibit novel and useful electronic and optical properties, many of which depend critically on controlling the chemical potential relative to the charge-neutrality point. Complex-oxide heterostructures enable reconfigurable control of conductive nanostructure, making them an interesting platform for controlling the electronic properties of graphene at nanoscale dimensions. Here we report the fabrication of graphene/LaAlO3/SrTiO3 heterostructures with nanoscale programmable control of the charge-neutrality point. Magnetotransport measurements of superlattice structures show characteristic interference features that can be associated with the electronically patterned interface. We discuss possible new directions based on this highly versatile hybrid platform.

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Presenters

  • Qing Guo

    Univ of Pittsburgh, Physics, University of Pittsburgh

Authors

  • Qing Guo

    Univ of Pittsburgh, Physics, University of Pittsburgh

  • Jianan Li

    Physics, Univ of Pittsburgh, Physics and Astronomy, University of Pittsburgh, Department of Physics and Astronomy, Univ of Pittsburgh, Physics, University of Pittsburgh, University of Pittsburgh, Physics and Astronomy, Univ of Pittsburgh

  • Lu Chen

    Univ of Pittsburgh, University of Pittsburgh, Physics, University of Pittsburgh

  • Mengchen Huang

    Univ of California, Santa Barbara, Department of Physics and Astronomy, University of Pittsburgh, Physics, University of California, Santa Barbara

  • Jen-Feng Hsu

    Univ of Pittsburgh, University of Pittsburgh, Physics, University of Pittsburgh

  • Jung-Woo Lee

    Univ of Wisconsin-Madison, University of Wisconsin-Madison, University of Wisconsin, University of Wisconsin–Madison, Physics, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin-Madison

  • Hyungwoo Lee

    University of Wisconsin-Madison, Univ of Wisconsin-Madison, University of Wisconsin, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin-Madison, Physics, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin - Madison

  • Chang-Beom Eom

    University of Wisconsin-Madison, Univ of Wisconsin-Madison, Univ of Wisconsin, Madison, Department of Material Science and Engineering, University of Wisconsin-Madison, Matls Sci & Eng, University of Wisconsin-Madison, University of Wisconsin, Department of Materials Science and Engineering, University of Wisconsin-Madison, University of Wisconsin–Madison, MS&E, University of Wisconsin, Physics, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin - Madison

  • Brian D'Urso

    Montana State University, Physics, University of Montana

  • Patrick Irvin

    Univ of Pittsburgh, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh, Department of Physics and Astronomy, Univ of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics, University of Pittsburgh, Physics and Astronomy, Univ of Pittsburgh

  • Jeremy Levy

    Univ of Pittsburgh, Physics, Univ of Pittsburgh, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh, Department of Physics and Astronomy, Univ of Pittsburgh, Department of Physics and Astronomy, University of Pittsburgh, Physics, University of Pittsburgh, Physics and Astronomy, Univ of Pittsburgh