Interplay between exchange interactions and charging effects in metallic grains

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dc.creatorSan-Jose, Pablo
dc.creatorHerrero, Carlos P.
dc.creatorGuinea, Francisco
dc.creatorArovas, Daniel P.
dc.date2004-01-27
dc.date2004-06-30
dc.date.accessioned2026-07-25T15:30:03Z
dc.descriptionWe study the effect of the exchange interactions in small superconducting grains near the Coulomb blockade regime. We extend the standard description of the grain in terms of a single collective variable, the charge and its conjugated phase, to include the spin degree of freedom. The suppression of spin fluctuations enhances the tendency towards Coulomb blockade. The effective charging energy and conductance are calculated numerically in the regime of large grain-lead coupling.
dc.description4 pages, 3 figures. Some updates to references, and a new introduction have been included
dc.identifierhttps://arxiv.org/abs/cond-mat/0401557
dc.identifierhttp://arxiv.org/abs/cond-mat/0401557
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/34404
dc.subjectMesoscale and Nanoscale Physics
dc.titleInterplay between exchange interactions and charging effects in metallic grains
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