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Resistivity saturation revisited: results from a dynamical mean field theory

A. J. Millis·Jun Hu·Sankar Das Sarma
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Abstract

We use the dynamical mean field method to study the high-temperature resistivity of electrons strongly coupled to phonons. The results reproduce the qualtiative behavior of the temperature and disorder dependence of the resistivity of the 'A-15' materials, which is commonly described in terms of saturation, but imply that the resistivity does not saturate. Rather, a change in temperature dependence occurs when the scattering becomes strong enough to cause a breakdown of the Migdal approximation.

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A. J. Millis, Jun Hu, Sankar Das Sarma. 1998-11-30. Resistivity saturation revisited: results from a dynamical mean field theory. https://doi.org/10.1103/physrevlett.82.2354

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