Description of hysteretic current-voltage characteristics of SNS junctions
Denis Gokhfeld
Abstract
Simplified model for current-voltage characteristics of weak links is suggested. It is based on an approach considering the multiple Andreev reflection in metallic Josephson junction. The model allows to calculate current-voltage characteristics of the superconductor - normal metal - superconductor junctions with different thicknesses of normal layer at different temperatures. A hysteretic peculiarity of V(I) dependence is described as result of the negative differential resistance. The current-voltage characteristic of high-Tc composite YBCO +BaPbO3 were computed.
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