Observation of large dc supercurrents at nonzero voltages in Josephson tunnel junctions
- 15 September 1976
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 29 (6) , 380-382
- https://doi.org/10.1063/1.89094
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.Keywords
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