The Superconducting Phase Diagram of LaAlO$_3$/SrTiO$_3$ Interfaces

ORAL

Abstract

The discovery of a two-dimensional electron liquid (2DEL), formed at the interface between the two band insulators LaAlO$_3$ (LAO) and SrTiO$_3$ (STO), has generated significant interest. The 2DEL has indeed intriguing electronic properties including superconductivity and spin-orbit interaction which can be tuned both by field-effect. In this talk I will discuss in detail the superconducting phase diagram revealed by field-effect experiments and the consequences of the electric field on the conducting layer extension. I will then compare the superconducting behaviour of this 2D system with the 3D one of doped STO crystals.

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Authors

  • Stefano Gariglio

    • DQMP, University of Geneva
    • DQMP, Univ of Geneva

  • Alexandre Fête

    • DQMP, University of Geneva
    • DQMP, Univ of Geneva

  • Danfeng Li

    • DQMP, Univ of Geneva

  • Wei Liu

    • DQMP, Univ of Geneva

  • Margherita Boselli

    • DQMP, University of Geneva
    • DQMP, Univ of Geneva

  • Marc Gabay

    • LPS, Université Paris-Sud
    • LPS, Univ Paris-Sud

  • Jean-Marc Triscone

    • University of Geneva
    • DQMP, Univ of Geneva