The Kondo lattice state in the presence of Van Hove singularities: Next-to-leading order scaling

Electronic Properties of Solid

Abstract

Renormalization group analysis of the Kondo model with a logarithmic Van Hove singularity in the electron density of states has been carried out in the next-to-leading scaling approximation in different magnetic phases. The effective coupling constant remains small, while the renormalized magnetic moment and the frequency of spin fluctuations decrease by several orders of magnitude. In this way, broad regions of non-Fermi-liquid behavior are found from scaling trajectories in a large interval of the bare coupling constant. Applications to the physics of itinerant magnetism are considered.

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© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  1. 1.Mikheev Institute of Metal Physics, Ural BranchRussian Academy of SciencesYekaterinburgRussia

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