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Localization effects and inelastic scattering in disordered heavy electrons

M. C. O. Aguiar·E. Miranda·V. Dobrosavljevic
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Abstract

We study ground state and finite temperature properties of disordered heavy fermion metals by using a generalization of dynamical mean field theory which incorporates Anderson localization effects. The emergence of a non-Fermi liquid metallic behavior even at moderate disorder is shown to be a universal phenomenon resulting from local density of states fluctuations. This behavior is found to have a character of an electronic Griffiths phase, and can be thought of as a precursor of Anderson localization in a strongly correlated host. The temperature dependence of the conducting properties of the system reveal a non-trivial interplay between disorder and inelastic processes, which is reminiscent of the Mooij correlations observed in many disordered metals.

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M. C. O. Aguiar, E. Miranda, V. Dobrosavljevic. 2003-09-12. Localization effects and inelastic scattering in disordered heavy electrons. https://doi.org/10.1103/physrevb.68.125104

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