Conductance of LaAlO<sub><sup>3</sup></sub>/SrTiO<sub>3</sub> Nanostructures at Temperatures Between the Freezing Point and Boiling Point of Water

ORAL

Abstract

The discovery of a tunable 2DEG at the interface of LaAlO3/SrTiO3 (LAO/STO) has spurred interest in LAO/STO nanoelectronics. The technique of conductive atomic force microscopy (c-AFM) lithography is capable of creating conductive nanostructures by controlling the charge state of the LAO surface [1]. It is also known that a “water cycle” mediates conductivity at the oxide interface [2] and causes premature self-erasure of nanostructures. Here we describe experiments in which we measure the properties of conductive nanostructures in the temperature range 273 K < T < 400 K and as a function of ambient pressure. Understanding the properties of LAO/STO nanostructures in these conditions is important for applications as well as for subsequent measurements at low temperatures.


[1] C. Cen et al., Science 323, 1026-1030 (2009).
[2] F. Bi et al., Appl. Phys. Lett. 97, 173110 (2010).

*Funding acknowledgement: JL acknowledges a Vannevar Bush Faculty Fellowship (ONR N00014-15-1-2847). The work at University of Wisconsin-Madison was supported by the Air Force Office of Scientific Research FA9550-15-1-0334 and the Gordon and Betty Moore Foundation’s EPiQS Initiative, Grant GBMF9065 to Chang-Beom Eom.

–

Presenters

  • Aaron Greenberg

    • University of Pittsburgh

Authors

  • Aaron Greenberg

    • University of Pittsburgh

  • Dengyu Yang

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

  • Philip H Shenk

    • University of Pittsburgh

  • Joseph A Albro

    • University of Pittsburgh

  • Kitae Eom

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

  • Chang-Beom Eom

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

  • Patrick R Irvin

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

  • Jeremy Levy

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