Dendritic flux avalanches and nonlocal electrodynamics in thin superconducting films

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dc.creatorAranson, Igor S.
dc.creatorGurevich, Alex
dc.creatorWelling, Marco S.
dc.creatorWijngaarden, Rinke J.
dc.creatorVlasko-Vlasov, Vitalii K.
dc.creatorVinokur, Valerii M.
dc.creatorWelp, Ulrich
dc.date2004-07-19
dc.date.accessioned2026-07-07T06:27:05Z
dc.date.available2026-07-07T06:27:05Z
dc.descriptionWe present numerical and analytical studies of coupled nonlinear Maxwell and thermal diffusion equations which describe nonisothermal dendritic flux penetration in superconducting films. We show that spontaneous branching of propagating flux filaments occurs due to nonlocal magnetic flux diffusion and positive feedback between flux motion and Joule heat generation. The branching is triggered by a thermomagnetic edge instability which causes stratification of the critical state. The resulting distribution of magnetic microavalanches depends on a spatial distribution of defects. Our results are in good agreement with experiments performed on Nb films.
dc.description4 pages, 3 figures, see http://mti.msd.anl.gov/aran_h1.htm for extensive collection of movies of dendritic flux and temperature patterns
dc.identifierhttps://arxiv.org/abs/cond-mat/0407490
dc.identifierhttp://arxiv.org/abs/cond-mat/0407490
dc.identifierPhys. Rev. Lett. 94, 037002 (2005)
dc.identifierdoi:10.1103/PhysRevLett.94.037002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97312
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleDendritic flux avalanches and nonlocal electrodynamics in thin superconducting films
dc.typetext

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