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

Dengyu Yang; Yun-Yi Pai; Yuhe Tang; Yang Hu; Hyungwoo Lee; Jungwoo Lee; Chang-Beom Eom; Patrick Irvin; Jeremy Levy

Surface Acoustic Wave Generation and Detection on LaAlO₃/SrTiO₃

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 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).

March 7, 2019, 9:48 AM – March 7, 2019, 10:00 AM

Presenters

Dengyu Yang

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

Authors

Dengyu Yang

Department of Physics and Astronomy, University of Pittsburgh, University of Pittsburgh
Yun-Yi Pai

Department of Physics and Astronomy, University of Pittsburgh, University of Pittsburgh
Yuhe Tang

Department of Physics and Astronomy, University of Pittsburgh, Department of Physics & Astronomy, University of Pittsburgh, University of Pittsburgh
Yang Hu

Department of Physics and Astronomy, University of Pittsburgh, Department of Physics & Astronomy, University of Pittsburgh, University of Pittsburgh
Hyungwoo Lee

Department of Materials Science and Engineering, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin-Madison, University of Wisconsin-Madison, Department of Material Science and Engineering, University of Wisconsin-Madison, Materials Science and Engineering, University of Wisconsin-Madison, Materials Science and Engineering, Univ of Wisconsin-Madison, University of Wisconsin–Madison
Jungwoo Lee

Department of Materials Science and Engineering, University of Wisconsin-Madison, University of Wisconsin-Madison, Department of Materials Science and Engineering, University of Wisconsin–Madison, Department of Material Science and Engineering, University of Wisconsin-Madison, Materials Science and Engineering, University of Wisconsin-Madison, Materials Science and Engineering, Univ of Wisconsin-Madison
Chang-Beom Eom

Department of Materials Science and Engineering, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin-Madison, University of Wisconsin-Madison, Department of Material Science and Engineering, University of Wisconsin-Madison, Materials Science and Engineering, University of Wisconsin-Madison, Materials Science and Engineering, Univ of Wisconsin-Madison, University of Wisconsin–Madison
Patrick Irvin

Department of Physics and Astronomy, University of Pittsburgh, Department of Physics, University of Pittsburgh, University of Pittsburgh, Department of Physics & Astronomy, University of Pittsburgh, Physics and Astronomy, University of Pittsburgh
Jeremy Levy

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