A New Class of $J_{eff}=1/2$ Mott Insulators

ORAL

Abstract

We predict a novel class of Jeff=1/2 Mott insulators in a family of Ir and Rh fluoride compounds with the K$_2$GeF$_6$ crystal structure that are previously synthesized, but not characterized extensively. First principles calculations in the level of all electron Density Functional Theory + Dynamical Mean Field Theory (DFT+DMFT) indicate that these compounds have large Mott gaps and some of them exhibit unprecedented proximity to the ideal, SU(2) symmetric Jeff=1/2 limit.

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Authors

  • Turan Birol

    • Rutgers, The State University of New Jersey
    • Rutgers University

  • Kristjan Haule

    • Rutgers University
    • Rutgers University, Piscataway, USA
    • Rutgers, The State University of New Jersey
    • Rutgers University, Piscataway, NJ, USA
    • Department of Physics, Rutgers University, Piscataway, New Jersey, USA
    • Rutgers Univ