FLUCTUATION PARACONDUCTIVITY IN MESOSCOPIC SUPERCONDUCTOR-NORMAL-METAL CONTACTS

The fluctuation conduction of normal-metal-superconductor-normal-metal (N/S/N) and superconductor-normal-metal-superconductor (S/N/S) contac ts above T-c are analyzed. For N/S/N contacts, both Aslamazov-Larkin a nd Maki-Thompson corrections to the conduction are found to be of the same order and diverge for T-c < T-c according to the law (T-T-c*)(-1 ). For S/N/S contacts, the Aslamazov-Larkin correction vanishes, while the Maki-Thompson correction is essential for contacts shorter than t he phase breaking length.