Topological Kondo Insulators

ORAL

Abstract

We explore the possibility for the Ce-based topological Kondo insulators. Kondo insulators are specific type of materials where Kondo lattice effect andleads to a formation of a band insulator. We describe the insulating phase within the large-N mean field approximation for the Kondo lattice model and classify the possible topological insulating states with respect to the symmetry of the lowest lying Kramers doublet of the cerium ion. We discuss possible experimental implications of our theory for the Ce-based Kondo insulators CeNiSn and CeRhSb.

*This work was financially supported by DOE (M.D. and V.G.), JQI-NSF-PFC (K.S.) and DOE, DE-FG02-99ER45790 (P.C.)

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Authors

  • Maxim Dzero

    • University of Maryland

  • Kai Sun

    • University of Maryland
    • University of Maryland, College Park

  • Victor Galitski

    • University of Maryland
    • University of Maryland, College Park
    • University of Maryland College Park

  • Piers Coleman

    • Rutgers University