Non-Coulombic frictional drag currents in coupled LaAlO3/SrTiO3 nanowires

ORAL

Abstract

Frictional drag phenomena are investigated in coupled nanowires formed at LaAlO3/SrTiO3 heterointerfaces. The weak decay of drag resistance with increasing wire separation rules out Coulomb interactions as the dominant coupling mechanism. The observed unidirectional current drag is explained using a simple model that invokes slight asymmetries within nanowires. These results provide new insights into non-Coulombic electron-electron interaction effects that must be accounted for in any full description of electron transport at oxide interfaces.

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Presenters

  • Yuhe Tang

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

Authors

  • Yuhe Tang

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

  • Anthony Tylan-Tyler

    Department of Physics and Astronomy, University of Pittsburgh

  • Hyungwoo Lee

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

  • Jungwoo Lee

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

  • Michelle Tomczyk

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

  • Mengchen Huang

    Univ of California, Santa Barbara, Department of Physics and Astronomy, University of Pittsburgh, Physics, University of California, Santa Barbara

  • Chang-Beom Eom

    University of Wisconsin-Madison, Univ of Wisconsin-Madison, Univ of Wisconsin, Madison, Department of Material Science and Engineering, University of Wisconsin-Madison, Matls Sci & Eng, University of Wisconsin-Madison, University of Wisconsin, Department of Materials Science and Engineering, University of Wisconsin-Madison, University of Wisconsin–Madison, MS&E, University of Wisconsin, Physics, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin - Madison

  • Patrick Irvin

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

  • Jeremy Levy

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