Spectroscopic study on band evolution and formation of relativistic Mott insulating phase in Ir doped Sr<sub>2</sub>RuO<sub>4</sub>

ORAL

Abstract

Recent research showed 4d, 5d transition metal oxide provides rich novel physical properties. A discovery of superconductivity in Sr2RuO4 is still controversial to verify the mechanism, and relativisitc Mott phase of Sr2IrO4 expanded wide research field of spin-orbit coupling-driven physics. As one step to explore the field, doping study also become vivid that it can alter the system's key parameters and artificially create a perturbed physical system. Rh doping in Sr2IrO4 revealled variation of spin-orbit coupling, and doping on electrons on Sr2IrO4 showed charge carrier dependent collapse of Mott phase. Now we tried to study doped compound Sr2(Ru,Ir)O4 to show the electronic propagation of bands and evolution of relativistic Mott phase with angle-resolved photoemission spectrscopy technique. With this presentation we would clarify the role of spin-orbit coupling on the crystal-field-dominating band structure of Sr2RuO4, and provide a step by step evolution of relativistic Mott transition from varying spin-orbit coupling parameter.

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Presenters

  • Junyoung Kwon

    • Physics, Seoul Natl Univ
    • Department of Physics and Astronomy, Seoul Natl Univ

Authors

  • Junyoung Kwon

    • Physics, Seoul Natl Univ
    • Department of Physics and Astronomy, Seoul Natl Univ

  • Beom Seo Kim

    • Physics, Seoul Natl Univ
    • Department of Physics and Astronomy, Seoul Natl Univ

  • Jonathan Denlinger

    • Lawrence Berkeley National Laboratory
    • Advanced Light Source, Lawrence Berkeley National Laboratory
    • Advanced Light Source, Lawrence Berkeley National Lab
    • Advanced Light Source
    • Advanced Light Source, E. O. Lawrence Berkeley National Laboratory

  • Aaron Bostwick

    • Advanced Light Source, Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Laboratory
    • Advanced Light Source, Lawrence Berkeley National Lab
    • Advanced Light Source, E. O. Lawrence Berkeley National Laboratory
    • ALS, Lawrence Berkeley National Lab
    • Advanced Light Source

  • Eli Rotenberg

    • Advanced Light Source, Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Laboratory
    • Advanced Light Source, Lawrence Berkeley National Lab
    • Advanced Light Source, E. O. Lawrence Berkeley National Laboratory
    • ALS, Lawrence Berkeley National Lab
    • Advanced Light Source

  • Young Jai Choi

    • Yonsei University
    • Physics and Applied Physics, Yonsei University

  • Wonshik Kyung

    • Physics, Seoul Natl Univ
    • Physics and Astronomy, Seoul National University
    • Department of Physics and Astronomy, Seoul Natl Univ
    • Seoul Natl Univ

  • Changyoung Kim

    • Physics, Seoul Natl Univ
    • Physics and Astronomy, Seoul National University
    • Department of Physics and Astronomy, Seoul National University
    • Department of Physics and Astronomy, Seoul Natl Univ
    • Seoul Natl Univ
    • Center for Correlated Electron Systems, Institute for Basic Science