Scaling Theory of Conduction Through a Normal-Superconductor Microbridge
arXiv:cond-mat/9403055 · doi:10.1103/PhysRevLett.72.2470
Abstract
The length dependence is computed of the resistance of a disordered normal-metal wire attached to a superconductor. The scaling of the transmission eigenvalue distribution with length is obtained exactly in the metallic limit, by a transformation onto the isobaric flow of a two-dimensional ideal fluid. The resistance has a minimum for lengths near l/Gamma, with l the mean free path and Gamma the transmittance of the superconductor interface.
8 pages, REVTeX-3.0, 3 postscript figures appended as self-extracting archive, INLO-PUB-940315