Magnetic hysteresis in the microwave surface resistance of Nb samples in the critical state

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dc.creatorBonura, M.
dc.creatorGallitto, A. Agliolo
dc.creatorVigni, M. Li
dc.date2006-07-28
dc.date.accessioned2026-07-07T07:16:12Z
dc.date.available2026-07-07T07:16:12Z
dc.descriptionWe discuss the hysteretic behavior of the field-induced variations of the microwave surface resistance in superconductors in the critical state. Measurements have been performed in a bulk sample of Nb and a powdered one at different values of the temperature. We discuss a model, based on the Coffey and Clem theory, in which we take into account the flux distribution inside the sample, due to the critical state. The experimental results are justified quantitatively in the framework of our model. We show that by fitting the experimental data it is possible to determine the value of the critical current density and its field dependence.
dc.description8 pages, 10 embedded figures, submitted to Eur. Phys. J. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0607754
dc.identifierhttp://arxiv.org/abs/cond-mat/0607754
dc.identifierEur. Phys. J. B 53 (2006) 315-322
dc.identifierdoi:10.1140/epjb/e2006-00381-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/113504
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleMagnetic hysteresis in the microwave surface resistance of Nb samples in the critical state
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