Effects of Strong Correlations and Disorder in d-Wave Superconductors

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dc.creatorRigol, Marcos
dc.creatorShastry, B. Sriram
dc.creatorHaas, Stephan
dc.date2008-09-08
dc.date2009-02-06
dc.date.accessioned2026-07-07T12:38:05Z
dc.date.available2026-07-07T12:38:05Z
dc.descriptionWe use exact diagonalization techniques to study the interplay between strong correlations, superconductivity, and disorder in a model system. We study an extension of the t-J model by adding an infinite-range d-wave superconductivity inducing term and disorder. Our work shows that in the clean case the magnitude of the order parameter is surprisingly small for low-hole filling, thus implying that mean-field theories might be least accurate in that important regime. We demonstrate that substantial disorder is required to destroy a d-wave superconducting state for low-hole doping. We provide the first bias free numerical results for the local density of states of a strongly correlated d-wave superconducting model, relevant for STM measurements at various fillings and disorders.
dc.description4 pages, 4 figures, as published
dc.identifierhttps://arxiv.org/abs/0809.1423
dc.identifierhttp://arxiv.org/abs/0809.1423
dc.identifierPhys. Rev. B 79, 052502 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.052502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218632
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleEffects of Strong Correlations and Disorder in d-Wave Superconductors
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