Abstract
Large dc supercurrents at nonzero voltages are observed in dc current‐biased small Josephson tunnel junctions of the type PbIn‐ (PbIn)xOy‐Pb with critical current densities j0 ranging from 2×102 to 2×105 A/cm2. The dependence of the hysteresis on j0 and the form of the subharmonic energy gap structure are compared with the theoretical results of McDonald et al.

This publication has 19 references indexed in Scilit: