Superconductor to insulator transition in (111) SrTiO3/LaAlO3 interface

ORAL

Abstract

We study the superconductor-to-insulator phase diagram of the (111) interface between the two band-insulators: LaAlO3 and SrTiO3. This interface has a two dimensional six-fold crystalline structure, as recently detected in the magneto-transport properties [1]. It has also been predicted to host exotic electronic orders and exhibits correlation between superconductivity and spin-orbit interaction [2]. We tune the carrier density deep into the insulating state and studied the magneto-transport properties. Our data are analyzed in the framework of superconducting fluctuations within the insulating state.
[1] P. K. Rout et al. Physical Review B 95 (24), 241107 (2017)
[2] P. K. Rout et al. arXiv preprint arXiv:1706.01717 (Accepted in Phys. Rev. Lett.)

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Presenters

  • Yoram Dagan

    Tel Aviv Univ, Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, School of Physics and Astronomy, Tel Aviv University

Authors

  • Michael Mograbi

    School of Physics and Astronomy, Tel Aviv University

  • Eran Maniv

    Tel Aviv Univ, School of Physics and Astronomy, Tel Aviv University

  • Prasanna Rout

    Tel Aviv Univ, School of Physics and Astronomy, Tel Aviv University

  • David Graf

    NHMFL Tallahassee, NHMFL, National High Magnetic Field Lab, National High Magnetic Field Laboratory, National High Magnetic Field Laboratory/Florida State University, Natl High Magnetic Field Lab, NHMFL at Florida State University, Florida State University, National High Magnetic Field Laboratory, Florida State University, Condensed Matter Science, NHMFL

  • Yoram Dagan

    Tel Aviv Univ, Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, School of Physics and Astronomy, Tel Aviv University