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Dephasing in Disordered Metals with Superconductive Grains
2004
Physical Review Letters
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Temperature dependence of electron dephasing time τ_ϕ(T) is calculated for a disordered metal with small concentration of superconductive grains. Above the macroscopic superconducting transition line, when electrons in the metal are normal, Andreev reflection from the grains leads to a nearly temperature-independent contribution to the dephasing rate. In a broad temperature range 1/τ_phi(T) strongly exceeds the prediction of the classical theory of dephasing in normal disordered conductors,
doi:10.1103/physrevlett.92.247002
pmid:15245123
fatcat:rvdtamdrqrbr5bx4udvvvu5azq