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Nonequilibrium Superconductivity in Double Tunnel Junction with Spatially Inhomogeneous Superconducting Electrode

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Abstract

To study nonequilibrium superconductivity in the electrodes with a spatially inhomogeneous order parameter (SIOP), Pb1/Sn1-I-Pb2/Sn2-I-Pb3 double tunnel junctions have been produced. Their current-voltage characteristics at the temperature T=4.2 K and dependencies representing order parameter change in the electrode with SIOP under quasiparticle injection have been studied. It is shown that for a Pb/Sn sandwich the “dirty limit” conditions hold. Estimations of the γ m proximity effect parameter, \(\tau_{R}^{\mathrm{eff}}\) effective recombination time for the Pb/Sn sandwich and τ T tunneling time in an injector junction have been made.

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Authors and Affiliations

  1. Department of Superconducting Electronics, G.V. Kurdyumov Institute for Metal Physics, Kiev, 03680, Ukraine

    E. M. Rudenko, I. V. Korotash, A. A. Krakovny, D. S. Dubyna, D. A. Solomakha & D. S. Shchyptsov

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  1. E. M. Rudenko
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  2. I. V. Korotash
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  3. A. A. Krakovny
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  4. D. S. Dubyna
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  5. D. A. Solomakha
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  6. D. S. Shchyptsov
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Correspondence to E. M. Rudenko.

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Rudenko, E.M., Korotash, I.V., Krakovny, A.A. et al. Nonequilibrium Superconductivity in Double Tunnel Junction with Spatially Inhomogeneous Superconducting Electrode. J Low Temp Phys 171, 779–787 (2013). https://doi.org/10.1007/s10909-012-0812-3

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  • DOI: https://doi.org/10.1007/s10909-012-0812-3

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