Frustration in d-wave Superconducting Circuits: $π$-Ring Behaviour

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dc.creatorHogan-O'Neill, J. J.
dc.creatorAnnett, J. F.
dc.creatorMartin, A. M.
dc.date2000-06-02
dc.date.accessioned2026-07-07T02:37:48Z
dc.date.available2026-07-07T02:37:48Z
dc.descriptionA closed superconducting circuit containing an odd number of $π$-junctions, a $π$-ring, has a finite current in the ground state. We explicitly construct such rings for d-wave superconductors and demonstrate the existence of spontaneous currents by direct self-consistent solutions to the Bogoliubov de Gennes equations. We show that the current has a topological origin due to the frustration of the d-wave order parameter, which is only partially explained by the Sigrist-Rice tunneling formula.
dc.descriptionSubmitted for Physical Review Letters. 5 figures, 4 pages, 2 column format
dc.identifierhttps://arxiv.org/abs/cond-mat/0006033
dc.identifierhttp://arxiv.org/abs/cond-mat/0006033
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16433
dc.subjectSuperconductivity
dc.titleFrustration in d-wave Superconducting Circuits: $π$-Ring Behaviour
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