Effects of Weak Links in the Nonlinear Microwave Response of MgB2 Superconductor

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dc.creatorGallitto, A. Agliolo
dc.creatorBonsignore, G.
dc.creatorGiunchi, G.
dc.creatorVigni, M. Li
dc.date2006-06-22
dc.date.accessioned2026-07-07T07:49:16Z
dc.date.available2026-07-07T07:49:16Z
dc.descriptionWe report experimental results of second-harmonic (SH) response at microwave frequency in several ceramic MgB2 samples, prepared by different methods. The SH signal has been investigated as a function of the temperature and DC magnetic field. The investigation has been carried out at low magnetic fields, where nonlinear processes arising from motion of Abrikosov fluxons are ineffective. We show that the low-temperature SH emission is ascribable to processes involving weak links. Comparison among the peculiarities of the SH signal radiated by the different samples shows that the presence of weak links strongly depends on the sample preparation method, as well as the purity and morphology of the components used for the preparation.
dc.description14 pages, 4 figures, 1 table; Proceedings of 9th Symposium of High Temperature Superconductors in High Frequency Fields (25-28 June 2006, Cardiff, UK)
dc.identifierhttps://arxiv.org/abs/cond-mat/0606576
dc.identifierhttp://arxiv.org/abs/cond-mat/0606576
dc.identifierJ. Supercond. 20 (2007) 13-20
dc.identifierdoi:10.1007/s10948-006-0196-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/124781
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleEffects of Weak Links in the Nonlinear Microwave Response of MgB2 Superconductor
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