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

Yang Hu; Yuhe Tang; Dengyu Yang; Yun-Yi Pai; Jianan Li; Hyungwoo Lee; Jung-Woo Lee; Chang-Beom Eom; Patrick Irvin; Jeremy Levy

Development of single-electron sources in LaAlO₃/SrTiO₃ 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).

March 4, 2019, 8:36 AM – March 4, 2019, 8:48 AM

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