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Kondo-driven topological semimetals in two and three dimensions

ORAL

Abstract

In strongly correlated settings, how space group symmetry influences electronic
topology is a general question that has been little explored. Motivated by recent
developments on Weyl-Kondo semimetals, and guided by space-group symmetry
constraints, we study the Kondo lattice Hamiltonian on several lattices in two and three
dimensions. We find that the Kondo effect in these lattices drives Weyl or Dirac nodes
and pins them to the vicinity of the Fermi energy. This robust feature captures the
interplay between strong correlations on the one hand and constraints of space-group
symmetry and electron filling on the other. The overall implications of our results for strongly
correlated topology are discussed.

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Presenters

  • Chandan Setty

    Physics and Astronomy, Rice university, Department of Physics, University of Florida, Physics, University of Florida

Authors

  • Chandan Setty

    Physics and Astronomy, Rice university, Department of Physics, University of Florida, Physics, University of Florida

  • Haoyu Hu

    Physics and Astronomy, Rice university, Rice Univ, Department of Physics and Astronomy, Rice University

  • Sarah Grefe

    Rice Univ, Los Alamos National Lab, Los Alamos National Laboratory

  • Silke Paschen

    Vienna University of Technology

  • Jennifer Cano

    Stony Brook University, Stony Brook University, USA, Physics and Astronomy, Stony Brook University, Flatiron Institute; Stony Brook Univ., Department of Physics, Stonybrook University, Department of Physics and Astronomy, Stony Brook University, State Univ of NY - Stony Brook

  • Qimiao Si

    Rice Univ, Physics and Astronomy, Rice university, Rice University, Department of Physics and Astronomy, Rice University, Department of Physics & Astronomy, Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA