Model for Ferromagnetic Quantum Critical Point in a 1D Kondo Lattice

ORAL

Abstract

Motivated by recent experiments, we study a quasi-one dimensional model of a Kondo lattice with Ferromagnetic coupling between the spins. Using bosonization and dynamical large-N techniques we establish the presence of a Fermi liquid and a magnetic phase separated by a local quantum critical point, governed by the Kondo breakdown picture. Thermodynamic properties are studied and a gapless charged mode at the quantum critical point is highlighted.

–

Presenters

  • Yashar Komijani

    Department of Physics and Astronomy, Rutgers Univ, Department of Physics and Astronomy, Rutgers University

Authors

  • Yashar Komijani

    Department of Physics and Astronomy, Rutgers Univ, Department of Physics and Astronomy, Rutgers University

  • Piers Coleman

    Department of Physics and Astronomy, Rutgers Univ, Rutgers University, Department of Physics and Astronomy, Rutgers University, Department of Physics, 136 Frelinghuysen Road, Rutgers University, Physics and Astronomy, Rutgers University, Rutgers Univ