Nonequilibrium characteristics in all-superconducting tunnel structures

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dc.creatorLaakso, M. A.
dc.creatorVirtanen, P.
dc.creatorGiazotto, F.
dc.creatorHeikkila, T. T.
dc.date2006-11-20
dc.date.accessioned2026-07-07T08:02:41Z
dc.date.available2026-07-07T08:02:41Z
dc.descriptionWe study the nonequilibrium characteristics of superconducting tunnel structures in the case when one of the superconductors is a small island confined between large superconductors. The state of this island can be probed for example via the supercurrent flowing through it. We study both the far-from-equilibrium limit when the rate of injection for the electrons into the island exceeds the energy relaxation inside it, and the quasiequilibrium limit when the electrons equilibrate between themselves. We also address the crossover between these limits employing the collision integral derived for the superconducting case. The clearest signatures of the nonequilibrium limit are the anomalous heating effects seen as a supercurrent suppression at low voltages, and the hysteresis at voltages close to the gap edge $2Δ/e$, resulting from the peculiar form of the nonequilibrium distribution function.
dc.description8 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0611519
dc.identifierhttp://arxiv.org/abs/cond-mat/0611519
dc.identifierPhys. Rev. B 75, 094507 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.094507
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129307
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.titleNonequilibrium characteristics in all-superconducting tunnel structures
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