Localization, superconducting fluctuations, and superconductivity in thin films and narrow wires of aluminum
- 1 March 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 35 (7), 3188-3206
- https://doi.org/10.1103/physrevb.35.3188
Abstract
We report a comprehensive set of experiments on wide and narrow thin-film strips of aluminum which test the predictions of recent localization theory. The experiments on wide films in the two-dimensional regime confirm the theoretical predictions and also yield insight into inelastic mechanisms and spin-orbit scattering rates. Our extension of the existing theory for one-dimensional systems to include spin-orbit scattering and Maki-Thompson superconducting fluctuations is verified by the experiments. We find clear evidence for one-dimensional localization, with inferred inelastic rates identical to those in two-dimensional films. The prediction of the localization theory for a dimensional crossover from two-dimensional to one-dimensional behavior is also confirmed. We have reanalyzed the results of some previous experiments on thin films and narrow wires in light of these results.Keywords
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