Influence of Temperature on LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Nanowire Lifetimes Under Ambient Conditions

ORAL

Abstract


The discovery of a tunable 2DEG at the interface of LaAlO3/SrTiO3 has spurred interest in LaAlO3/SrTiO3, which exhibits numerous interesting properties. Using a conductive AFM lithography technique, we can create novel devices at the interface of LaAlO3/SrTiO3 by locally confining the 2DEG to zero or one dimension [1]. However, in ambient conditions, an appreciable degradation of device lifetime occurs [2]. Previously, the decay rate of such devices was characterized as a function of humidity and pressure; however, its dependence on temperature has yet to be determined. Here we describe experiments detailing efforts to quantify the device lifetimes as a function of temperature under otherwise ambient conditions, which will aid in the creation of new, more complex devices.

[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). C-BE acknowledges NSF DMREF (DMR-1629270), AFOSR (FA9550-15-1-0334).

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Presenters

  • Aaron Greenberg

    • Univ of Pittsburgh

Authors

  • Aaron Greenberg

    • Univ of Pittsburgh

  • Philip Shenk

    • Univ of Pittsburgh

  • Joseph Albro

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

  • Muqing Yu

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

  • 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