Tailoring spin-orbit Mott insulators via designed superlattices

ORAL

Abstract

The layered perovskite iridates Sr$_{n+1}$Ir$_{n}$O$_{3n+1}$ show a transition from a magnetic insulating to a semi-metallic state as the number of layers $n$ is increased. This behaviour is intimately related to the interplay between spin-orbit coupling, electronic correlations and dimensionality. In this talk, we will show that the fabricated superlattices [(SrIrO$_3$)/SrTiO$_3$], provide new insight into this behaviour. Theoretical calculations using density functional and tight binding approaches will be presented to support our results.

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Authors

  • Vijay Shankar V

    • Department of Physics, University of Toronto, Toronto, Canada

  • Jobu Matsuno

    • RIKEN Advanced Science Institute, Wako, Japan

  • Tomohiro Takayama

    • Department of Advanced Materials, University of Tokyo, Japan

  • M. Ahzan Zeb

    • Cavendish Laboratory, University of Cambridge, Cambridge, UK

  • Hae-Young Kee

    • University of Toronto
    • Department of Physics, University of Toronto and Canadian Institute for Advanced Research, Toronto, Canada

  • Hidenori Takagi

    • Department of Physics, University of Tokyo, and RIKEN Advanced Science Institute, Japan