AC Josephson effect in the long voltage-biased SINIS junction |
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Authors: | K S Tikhonov and M V Feigel’man |
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Institution: | (1) Moscow Institute of Physics and Technology, Moscow, 141700, Russia;(2) Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 117940, Russia |
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Abstract: | Theory of non-stationary coherent effects is developed for superconductor-normal-superconductor (SNS) structures with relatively
strong normal scattering on S/N interfaces (interface resistance is large compared to intrinsic resistance of N metal). Analytical
expressions are found for the time-dependent anomalous Green’s functions induced in the N region under the fixed-voltage-bias.
The amplitude of the current oscillations is determined in non-equilibrium conditions. Non-stationary correction to the distribution
function is calculated in high-temperature limit and found to be slowly decreasing with the temperature, leading to the dominance
of the second-harmonic term in the Josephson current, I
s
(t) ∝ sin(4eVt) at high temperatures and low voltage.
The article is published in the original. |
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Keywords: | |
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