Description of hysteretic current-voltage characteristics of SNS junctions

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.

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

References in corpus (1)

• Andreev reflection in Bi_{1.8}Pb_{0.3}Sr_{1.9}Ca_2Cu_3O_x break junction

Cited by in corpus (2)

• Amplitudes of minima in dynamic conductance spectra of the SNS Andreev contact
• Current - voltage characteristics of break junctions of high-$T_c$ superconductors