Cryogenic Piezoforce Microscopy of Sketched LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Nanostructures

ORAL

Abstract


It is possible to reveal otherwise hidden electronic properties in 2D oxide interfaces, namely LaAlO3/SrTiO3, by using local probes instead of traditional bulk measurements. For example, scanning single electron transistor microscopy has shown enhanced transport along ferroelastic domain boundaries [1]. Furthermore, Frenkel et al. have demonstrated that the local application of pressure to the interface of LaAlO3/SrTiO3 can reveal ferroelastic domain boundaries [2]. Here we detail our efforts to reveal electron transport in “sketched” LaAlO3/SrTiO3 nanostructures [3] using a modified vacuum AFM at room and low (T < 25 K) temperatures.
[1] M. Honig et al., Nature Materials 12, 1112 (2013).
[2] Y. Frenkel et al., Nature Materials 16, 1203 (2017).
[3] C. Cen et al., Nature Materials 7, 298 (2008).

*JL acknowledges a Vannevar Bush Faculty Fellowship, funded by ONR (N00014-15-1-2847). C-BE acknowledges NSF DMREF (DMR-1629270), AOARD (FA2386-15-1-4046), AFOSR (FA9550-15-1-0334).

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Presenters

  • Joseph Albro

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

Authors

  • Joseph Albro

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

  • Jessica Montone

    • Department of Physics and Astronomy, University of Pittsburgh
    • Physics, University of Illinois Urbana-Champaign
    • University of Illinois at Urbana-Champaign

  • Feng Bi

    • Department of Physics and Astronomy, University of Pittsburgh

  • Mengchen Huang

    • Department of Physics and Astronomy, University of Pittsburgh
    • Physics, University of California-Santa Barbara

  • Jung-Woo Lee

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

  • Hyungwoo Lee

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

  • Chang-Beom Eom

    • Univ of Wisconsin-Madison
    • Materials Science and Engineering, University of Wisconsin-Madison
    • University of Wisconsin–Madison
    • Department of Materials Science and Engineering, University of Wisconsin-Madison
    • Materials Science & Engineering, University of Wisconsin-Madison
    • University of Wisconsin - Madison
    • Department of Materials Science and Engineering, University of Wisconsin - Madison
    • Department of Materials Science and Engineering, University of Wisconsin at Madison

  • Patrick Irvin

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

  • Jeremy Levy

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