Pair-correlations and magnetic susceptibility of small Al-grains

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dc.creatorKuzmenko, N. K.
dc.creatorMikhajlov, V. M.
dc.creatorFrauendorf, S.
dc.date1998-07-01
dc.date1998-08-10
dc.date.accessioned2026-07-07T03:10:57Z
dc.date.available2026-07-07T03:10:57Z
dc.descriptionPaircorrelations and the magnetic susceptibility of electrons in a spherical cavity are studied both for grand canonical and the canonical ensemble. The coupling constant of the $BCS$ Hamiltonian is adjusted to experimental values of the gap parameter. The gap parameter is found to increase for small grains as a consequence of the pronounced shell structure in the spectrum of the spherical cavity. The sharp phase transition at $T_c$ is smeared out for the canonical ensemble. The strong paramagnetic susceptibility of the normal electrons in the cavity is reduced by the superconductivity, but it remains positive.
dc.description26 pages, 14 eps figures, Journal of Cluster Science, subm
dc.identifierhttps://arxiv.org/abs/cond-mat/9807011
dc.identifierhttp://arxiv.org/abs/cond-mat/9807011
dc.identifierJ.Cluster Sci. 10 (1999) 195-225
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28402
dc.subjectMesoscale and Nanoscale Physics
dc.subjectNuclear Theory
dc.subjectAtomic and Molecular Clusters
dc.titlePair-correlations and magnetic susceptibility of small Al-grains
dc.typetext

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