Description of hysteretic current–voltage characteristics of superconductor–normal metal–superconductor junctions

A simplified model for the current-voltage characteristics of weak links is suggested. It is based on an approach considering the multiple Andreev reflection in a metallic Josephson junction. The model allows one to calculate the current-voltage characteristics of superconductor-normal metal-superco...

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Bibliographic Details
Published in:Superconductor science & technology 2007-01, Vol.20 (1), p.62-66
Main Author: Gokhfeld, D M
Format: Article
Language:English
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Summary:A simplified model for the current-voltage characteristics of weak links is suggested. It is based on an approach considering the multiple Andreev reflection in a metallic Josephson junction. The model allows one to calculate the current-voltage characteristics of superconductor-normal metal-superconductor junctions with different thicknesses of normal layer at different temperatures. A hysteretic peculiarity of the V (I) dependence is described as a result of the negative differential resistance. The current-voltage characteristics of tin microbridges and high-Tc composite YBCO+BaPbO3 were computed.
ISSN:0953-2048
1361-6668
DOI:10.1088/0953-2048/20/1/011