The transition from the superconducting to the normal resisting state under certain conditions is found not to be continuous but to include a hitherto unsuspected spontaneous increase in resistance followed by a slower decrease. The spontaneous decrease in resistance usually proceeds for several minutes in a succession of steps until only a fraction of its crest value remains. This crest value of the transient resistance is sometimes 75 percent of the normal. After such an effect has occurred, it will not occnr again when the same conditions are reestablished, unless, in the meantime, the temperature has been lowered or else a time interval of at least half an hour has elapsed.
No takes yet. Share an insight, caveat, or question.
Silsbee et al. (1937) studied this question.