Kondo disorder: a possible route towards non-Fermi liquid behavior

Abstract

We present a general model of disorder in Kondo alloys that, under certain conditions, leads to non-Fermi liquid behavior. The central underlying idea is the presence of a distribution of local Kondo temperature scales. If this distribution is broad enough, such that there are sites with arbitrarily low Kondo temperatures, a non-Fermi liquid phase is formed. We analyze thermodynamics and transport in this approach and show it is consistent with a number of Kondo alloys. We also compare the predictions of this model with the measured dynamical magnetic response of these systems.

Part of the Proceedings of the ITP-Santa Barbara conference on non-Fermi liquids, 34 pages, 14 epsf-included figures, uses IOP style files

References in corpus (2)

• Two-Channel Kondo Lattice: An Incoherent Metal
• Scaling analysis of a model Hamiltonian for Ce${}^{3+}$ impurity in a cubic metal

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