Breakdown by a magnetic field of the superconducting fluctuations in the normal state in Pb_{1-x}In_x alloys

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dc.creatorSoto, Felix
dc.creatorCarballeira, Carlos
dc.creatorMosqueira, Jesus
dc.creatorRamallo, Manuel V.
dc.creatorRuibal, Mauricio
dc.creatorVeira, Jose A.
dc.creatorVidal, Felix
dc.date2003-12-26
dc.date.accessioned2026-07-07T02:55:37Z
dc.date.available2026-07-07T02:55:37Z
dc.descriptionThe effects induced on the magnetization by coherent fluctuating Cooper pairs in the normal state have been measured in Pb_{1-x}In_x alloys up to high magnetic fields, of amplitudes above Hc2(0), the upper critical field extrapolated to T=0K. Our results show that in dirty alloys these superconducting fluctuation effects are, in the entire H-T phase diagram above Hc2(T), independent of the amount of impurities and that they vanish when H~1.1Hc2(0). These striking results are consistent with a phenomenological estimate that takes into account the limits imposed by the uncertainty principle to the shrinkage, when H increases, of the superconducting wave function.
dc.descriptionLaTeX, 13 pages including 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0312647
dc.identifierhttp://arxiv.org/abs/cond-mat/0312647
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23003
dc.subjectSuperconductivity
dc.titleBreakdown by a magnetic field of the superconducting fluctuations in the normal state in Pb_{1-x}In_x alloys
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