Fluxon dynamics by microwave surface resistance measurements in MgB2

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dc.creatorGallitto, A. Agliolo
dc.creatorBonura, M.
dc.creatorFricano, S.
dc.creatorVigni, M. Li
dc.creatorGiunchi, G.
dc.date2003-09-29
dc.date.accessioned2026-07-07T06:23:55Z
dc.date.available2026-07-07T06:23:55Z
dc.descriptionField-induced variations of the microwave surface resistance, Rs(H), have been investigated in high-density ceramic MgB2. At low temperatures, several peculiarities of the Rs(H) curves cannot be justified in the framework of models reported in the literature. We suggest that they are ascribable to the unconventional vortex structure in MgB2, related to the presence of two gaps. On the contrary, the results near Tc can be accounted for by the Coffey and Clem model, with fluxons moving in the flux-flow regime, provided that the anisotropy of the upper critical field is taken into due account.
dc.description6 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0309654
dc.identifierhttp://arxiv.org/abs/cond-mat/0309654
dc.identifierPhysica C 404 (2004) 171
dc.identifierdoi:10.1016/j.physc.2003.09.103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96374
dc.subjectSuperconductivity
dc.titleFluxon dynamics by microwave surface resistance measurements in MgB2
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