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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).

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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