Coherence between superconducting edge states in superconducting periodic arrays of artificial defects

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dc.creatorAbilio, C. C.
dc.creatorAmico, L.
dc.creatorFazio, Rosario
dc.creatorPannetier, B.
dc.date1999-05-25
dc.date1999-09-04
dc.date.accessioned2026-07-07T03:13:33Z
dc.date.available2026-07-07T03:13:33Z
dc.descriptionThe transition line of superconducting arrays of holes exhibits a rich field structure due to the interference of superconducting states nucleated at the holes edges. We studied by means of resistance measurements their effect on the T*c(H) line as a function of transverse magnetic field using regular arrays of nanofabricated micron size holes. The arrays transition fields are higher than for the bulk. Moreover we found a nontrivial field modulation of the T*c(H) line with an inversion, with increasing field, of the modulation concavity which we assigned to a crossover from a collective to an isolated edge state regime. The high field regime is well described by the nucleation at a single hole in an infinite film. The modulation at low fields was found to be dominated by the interference of neighbor edge states when the inter-hole distance w becomes comparable to the temperature dependent coherence length. A comparison between arrays of different hole shape shows the influence of geometry on the type of interaction established, which can described either as a superconducting wire network or as a weak link array.
dc.descriptionrevised version, fig.4 changed 23 pages, 7 figures, submitted to Journal of Low Temperature Physics
dc.identifierhttps://arxiv.org/abs/cond-mat/9905366
dc.identifierhttp://arxiv.org/abs/cond-mat/9905366
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29334
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.titleCoherence between superconducting edge states in superconducting periodic arrays of artificial defects
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