The authors investigated the voltage-current (V-I) relation in polycrystalline melt processed Bi 2 Sr 2 CaCu 2 O 8 over eleven orders of magnitude. From direct resistive measurements as well as analysis of the decay of magnetization with time they found evidence that the V-I curves in both regimes are part of a common V-I relation following a power law E alpha jP. From transport V-I curves they calculated the irreversible magnetization to be expected after a decay time of 120 s and found good agreement with the measured magnetization including reversibility above an irreversibility field B*.
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Ries et al. (1992) studied this question.
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