Quasiparticle trapping excitation and tunneling times in Josephson junctions with spatially inhomogeneous electrodes

E.P. Houwman, A.A. Golubov, J.G. Gijsbertsen, J. Flokstra, H. Rogalla, J.B. Le grand, M.P. Bruijn, P.A.J. de Korte

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    Abstract

    On the basis of a microscopic model of the proximity effect in an SS'-sandwich we have calculated effective trapping, excitation, and tunneling rates of the reduced gap region in an SS′IS″S junction as a function of temperature, voltage over the junction and strength of the proximity effect. We developed a simple model to describe the effect of magnetic fields on the gap of the superconductor, and calculated the trapping rate as function of the field. The experimentally determined gap reduction and quasiparticle loss times as function of the field were described in terms of this model.
    Original languageEnglish
    Pages (from-to)677-682
    Number of pages6
    JournalJournal of low temperature physics
    Volume93
    Issue number3/4
    DOIs
    Publication statusPublished - 1993
    EventConference on the Role of the Condensate and Vorticity in Dense Bose Systems 1993 - Minneapolis, United States
    Duration: 1 Aug 19933 Aug 1993

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