PINNING PROPERTIES OF A DISORDERED PLANAR DEFECT

The effects of penetration depth fluctuations in a disordered-regular superconducting junction are evaluated in the London limit. This confi guration demonstrates a disorder-proximity effect: the disorder on the one side of the junction induces pinning potential fluctuations on th e other side which penetrate a distance of the order of the penetratio n depth into the regular side. The associated correlation functions an d critical currents are calculated and discussed.