Percolation in Superconductive Networks

Abstract

The percolation properties and upper critical field of a disordered superconductive square network are calculated by use of the de Gennes-Alexander theory. It is suggested that photolithographic techniques be used to build such artificially disordered systems. The critical exponent of the upper critical field is calculated and found to be $k=0.93\mathrm{}\pm 0.06$ on the metallic side of the percolative transition.