Surface Acoustic Wave Generation and Detection on LaAlO<sub>3</sub>/SrTiO<sub>3</sub>

ORAL

Abstract

We aim to generate and detect surface acoustic waves (SAW) in LaAlO3/SrTiO3 heterostructures. Using a well-developed conductive-AFM lithography technique [1], we “sketch” interdigitated transducers (IDT) on LaAlO3/SrTiO3 “canvases”, which convert electronic signals into SAW and vice-versa. Two sets of IDTs are written on the structure to function as a generator and detector. SAW can be used to generate dynamic potentials based on piezoelectric properties of LaAlO3/SrTiO3, and have the potential to drive electrons through nanostructures, a property that could be useful for quantum information applications.

[1] C. Cen, et al., Nature Materials 7, 298 (2008).

*JL acknowledges a Vannevar Bush Faculty Fellowship (ONR N00014-15-1-2847), and the Office of Naval Research (N00014-16-1-3152). C-BE acknowledges NSF DMREF (DMR-1629270), AFOSR (FA9550-15-1-0334), and AOARD (FA2386-15-1-4046).

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Presenters

  • Dengyu Yang

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

Authors

  • Dengyu Yang

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

  • Yun-Yi Pai

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

  • Yuhe Tang

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

  • Muqing Yu

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

  • Yang Hu

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

  • Hyungwoo Lee

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

  • 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

  • Kitae Eom

    • Department of Materials Science and Engineering, 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