Energy dependence of current noise in double-barrier normal-superconducting structures

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dc.creatorBignon, G.
dc.creatorPistolesi, F.
dc.creatorHouzet, M.
dc.date2005-02-18
dc.date.accessioned2026-07-07T06:29:11Z
dc.date.available2026-07-07T06:29:11Z
dc.descriptionWe study theoretically the current-noise energy dependence for a N-N'-S structure, where N and S stand for bulk normal metal and superconductor, respectively, and N' for a short diffusive normal metal. Using quasiclassical theory of current fluctuations we obtain explicit expressions for the noise valid for arbitrary distributions of channel transparencies on both junctions. The differential Fano factor turns out to depend on both junction transparencies and the ratio of the two conductances. We conclude that measurement of differential conductance and noise can be used to probe the channel distribution of the interfaces.
dc.description9 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0502453
dc.identifierhttp://arxiv.org/abs/cond-mat/0502453
dc.identifierEur. Phy. J. B v. 50 p. 465 (2006)
dc.identifierdoi:10.1140/epjb/e2006-00161-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97941
dc.subjectMesoscale and Nanoscale Physics
dc.titleEnergy dependence of current noise in double-barrier normal-superconducting structures
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