Electronic thermal conductivity of disordered metals

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We calculate the thermal conductivity of interacting electrons in disordered metals. In our analysis we point out that the interaction affects thermal transport through two distinct mechanims, associated with quantum interference corrections and energy exchange of the quasi particles with the electromagnetic environment, respectively. The latter is seen to lead to a violation of the Wiedemann-Franz law. Our theory predicts a strong enhancement of the Lorenz ratio $κ/σT$ over the value which is predicted by the Wiedemann-Franz law, when the electrons encounter a large environmental impedance.
4 pages

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/23302

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0402245
 http://arxiv.org/abs/cond-mat/0402245
 Phys. Rev. B 70, 155109 (2004)
 doi:10.1103/PhysRevB.70.155109

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arXiv