Description of hysteretic current-voltage characteristics of SNS junctions

Denis Gokhfeld

doi:10.1088/0953-2048/20/1/011

Description of hysteretic current-voltage characteristics of SNS junctions

Superconductivity 2007-05-23 v2

Authors: Denis Gokhfeld

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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- $T_c$ composite YBCO +BaPbO ${_3}$ were computed.

Keywords

SNS junctions current-voltage characteristics multiple Andreev reflection hysteresis negative differential resistance weak links Josephson junction

Cite

@article{arxiv.cond-mat/0609541,
  title  = {Description of hysteretic current-voltage characteristics of SNS junctions},
  author = {Denis Gokhfeld},
  journal= {arXiv preprint arXiv:cond-mat/0609541},
  year   = {2007}
}

Comments

9 pages, 5 figures, submited to Supercond. Sci. Technol, replased Fig.5 for more correct comparison with experiment

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