We point out an apparent paradox encountered in the region where the temperature of a voltage-sustaining film at the upper critical current crosses its Tin concerning the crossover of the two dominant heating mechanisms currently used to account for the lower critical currents observed on the hysteretic current-voltage characteristics of long, thin-film superconductors at varying high power levels. We explore a possible solution of this paradox by carefully examining the relevant heating models and available experimental observations.
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Dharmadurai, G. A paradox in the crossover of the mechanisms causing the hysteresis in long, thin-film superconductors. J Low Temp Phys 40, 51–57 (1980). https://doi.org/10.1007/BF00115981
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DOI: https://doi.org/10.1007/BF00115981