Fluctuation Effects in the ac Conductivity of Thin Lead Films above the Superconducting Transition Temperature
- 29 September 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 23 (13) , 695-697
- https://doi.org/10.1103/physrevlett.23.695
Abstract
The transmission of microwaves through thin (∼100-Å) Pb films indicates considerable excess conductivity at temperatures above the superconducting transition temperature. Both the frequency and temperature dependences of this conductivity are in agreement with a calculation of Schmidt which takes account of the fluctuations of the order parameter for a film of thickness less than the Ginzburg-Landau coherence length. This agreement between experiment and theory supports Schmidt's choice of time-dependent Ginzburg-Landau equations.Keywords
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