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

E. Miranda·V. Dobrosavljevic·G. Kotliar
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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.

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E. Miranda, V. Dobrosavljevic, G. Kotliar. 1996-12-17. Kondo disorder: a possible route towards non-Fermi liquid behavior. https://doi.org/10.1088/0953-8984%2F8%2F48%2F014

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