Fluctuation Conductivity in Mesoscopic Superconductor - Normal Metal Contacts
A. F. Volkov, K. E. Nagaev, R. Seviour
Abstract
The fluctuation conduction of NSN and SNS contacts above Tc are analyzed. For NSN contacts, both Aslamazov-Larkin and Maki- Thompson corrections to the conduction are found to be of the same order and diverge for Tc* < Tc according to the law (T - Tc*)-1. For SNS contacts, the Aslamazov - Larkin correction vanishes,while the Maki - Thompson correction is essential for contacts shorter than the phase-breaking length.
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