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Publication
Applied Physics Letters
Paper
Current-phase relations as determinants of superconducting thin-film weak-link I-V characteristics
Abstract
The dc I-V characteristics of superconducting thin-film Sn-Au proximity bridges and uniform-thickness Sn microbridges have been carefully analyzed as a function of the directly measured current-phase relation (CPR). At sufficiently low dc current and voltage levels where heating and relaxation time effects are not important, the I-V characteristics are very well described by a shunted weak-link model that includes the proper dc CPR and a shunt resistance.