Development of single-electron sources in LaAlO<sub>3</sub>/SrTiO<sub>3</sub> nanostructures

ORAL

Abstract


The 2D electron gas at the LaAlO3/SrTiO3 interface can be patterned using conductive atomic force microscope (c-AFM) lithography [1], which has been used to create quantum dots and single electron transistors [2]. We aim to use this technique to create an on-demand single-electron source by sketching a linear array of quantum dots and applying out-of-phase excitation across the dot array. We will discuss both double-dot and triple-dot devices and their associated electron tunneling phenomenon and issues related to the the individual tunabilities of the dots.
[1] Cen et al, Nature Mater. 7, 298 (2008).
[2] Cheng et al, Nature Nanotechnology 6, 343 (2011).

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

–

Presenters

  • Yang Hu

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

Authors

  • Yang Hu

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

  • 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

  • Jianan Li

    • 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

  • 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

  • Jung-Woo Lee

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