Magnetotransport properties of LaAlO<sub>3</sub>/SrTiO<sub>3</sub>-based ultradense two-dimensional nanowire networks

ORAL

Abstract

Conductive AFM lithography can be used to form various conductive nanostructures in the 2D electron system formed at the interface of LaAlO3/SrTiO3. Previous studies on quasi-2D structures, such as waveguide 'nanocrosses', indicate that the electron transport is strongly influenced by ferroelastic domain structure, which in turn depends on the angle between the nanocross and the crystallographic direction. Here we characterize a dense network of nanocrosses or 2D nanowire networks, and probe the magnetotransport properties as a function of the angle of orientation of the nanowire network with the crystallographic direction. Such families of 2D networks of nanowires and/or waveguides, if sufficiently well understood, can be regarded as a possible platform for 2D quantum simulation.

*JL acknowledges support from NSF PHY-1913034. JL, PRI, CBE, and BH acknowledge support from DOE-QIS.

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Presenters

  • Ranjani Ramachandran

    • University of Pittsburgh

Authors

  • Ranjani Ramachandran

    • University of Pittsburgh

  • Aditi Nethwewala

    • University of Pittsburgh
    • University of Pittsburgh, Department of Physics and Astronomy, Pittsburgh, PA 15260, USA

  • Patrick R Irvin

    • University of Pittsburgh

  • Jeremy Levy

    • University of Pittsburgh
    • University of Pittsburgh, Department of Physics and Astronomy, Pittsburgh, PA 15260, USA

  • Hyungwoo Lee

    • University of WisconsinMadison, Department of Materials Science and Engineering, Madison, WI 53706, USA
    • University of Wisconsin-Madison, Department of Materials Science and Engineering, Madison, WI 53706, USA

  • Jung-Woo Lee

    • University of Wisconsin-Madison, Department of Materials Science and Engineering, Madison, WI 53706, USA

  • Chang-Beom Eom

    • University of Wisconsin - Madison
    • Oxide Laboratory, University of Wisconsin - Madison