Effects of charge doping a Mott insulator with strong spin-orbit coupling

ORAL

Abstract

The study of emergent novel quantum phases that result from the competing interactions of strong electron correlations and spin-orbit coupling (SOC) is of great current relevance. Double perovskites with 5d transition metal ions display comparable magnitudes of electron correlations, crystal field, and SOC, making them perfect candidate materials to study the consequences of such interactions. We used this class of materials to probe the effect of charge doping on a Mott insulator with strong spin-orbit entanglement. Specifically, in this talk, we present a comprehensive study of the electron-doped powder, double perovskite Ba2Na1-xCaxOsO6 through the Na/Ca partial substitution using nuclear magnetic resonance (NMR), muon spin relaxation (uSR), and superconducting quantum interference device (SQUID) measurements for 0 < x < 1.

*We acknowledge funding from NSF grant DMR-1905532. The National High Magnetic Field Laboratory is supported by the National Science Foundation through NSF/DMR-1644779 and the State of Florida.

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Presenters

  • Erick Garcia

    • Department of Physics, Brown University
    • Brown University

Authors

  • Erick Garcia

    • Department of Physics, Brown University
    • Brown University

  • Paola Caterina Forino

    • Department of Physics and Astronomy, University of Bologna

  • Rong Cong

    • Department of Physics, Brown University
    • Brown University

  • Phuong Tran

    • The Ohio State University

  • Anna Tassetti

    • Department of Physics and Astronomy, University of Bologna

  • Giuseppe Allodi

    • University of Parma

  • Arneil P Reyes

    • National High Magnetic Field Laboratory, Tallahassee, Florida
    • National High Magnetic Field Laboratory
    • Florida State University

  • Pat Woodward

    • Ohio State University
    • The Ohio State University

  • Samuele Sanna

    • Univ of Bologna
    • Department of Physics and Astronomy, University of Bologna

  • Vesna Mitrovic

    • Brown University
    • Department of Physics, Brown University
    • Physics, Brown University