Theory of $SNS$ sandwiches with nonmagnetic impurities of arbitrary concentration for near-critical temperatures
Teoretičeskaâ i matematičeskaâ fizika, Tome 56 (1983) no. 2, pp. 288-300
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A microscopic theory of an $SN$ contact and an $SNS$ sandwich is developed for nearcritical temperatures and arbitrary impurity concentrations. A boundary condition for the Ginzburg–Landau equation at the boundary of the superconductor with the normal metal is established. The current states in an $SNS$ sandwich with large thickness $d$ of the normal layer are calculated; it is shown that the effective length $\xi$ over which the current decreases by $e$ times as $d$ is increased is $1/\xi=(1/\xi_0+1/l)f(l/\xi_0)$, where $\xi_0$ is the coherence length in the pure superconductor. $l$ is the mean free path, and $f(l/\xi_0)$ is a root of a transcendental equation. The function $f$ is such that as $l$ varies from infinity to $l\ll\xi_0$ there is a smooth transition from effective length $\xi_0$ to $(\xi_0l/3)^{1/2}$.
@article{TMF_1983_56_2_a11,
author = {S. M. Savchenko and A. V. Svidzinskii},
title = {Theory of~$SNS$ sandwiches with nonmagnetic impurities of arbitrary concentration for near-critical temperatures},
journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
pages = {288--300},
year = {1983},
volume = {56},
number = {2},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/TMF_1983_56_2_a11/}
}
TY - JOUR AU - S. M. Savchenko AU - A. V. Svidzinskii TI - Theory of $SNS$ sandwiches with nonmagnetic impurities of arbitrary concentration for near-critical temperatures JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1983 SP - 288 EP - 300 VL - 56 IS - 2 UR - http://geodesic.mathdoc.fr/item/TMF_1983_56_2_a11/ LA - ru ID - TMF_1983_56_2_a11 ER -
%0 Journal Article %A S. M. Savchenko %A A. V. Svidzinskii %T Theory of $SNS$ sandwiches with nonmagnetic impurities of arbitrary concentration for near-critical temperatures %J Teoretičeskaâ i matematičeskaâ fizika %D 1983 %P 288-300 %V 56 %N 2 %U http://geodesic.mathdoc.fr/item/TMF_1983_56_2_a11/ %G ru %F TMF_1983_56_2_a11
S. M. Savchenko; A. V. Svidzinskii. Theory of $SNS$ sandwiches with nonmagnetic impurities of arbitrary concentration for near-critical temperatures. Teoretičeskaâ i matematičeskaâ fizika, Tome 56 (1983) no. 2, pp. 288-300. http://geodesic.mathdoc.fr/item/TMF_1983_56_2_a11/
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