Strongly Correlated Superconductivity and Pseudogap Phase near a multi-band Mott Insulator

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dc.creatorCapone, M.
dc.creatorFabrizio, M.
dc.creatorCastellani, C.
dc.creatorTosatti, E.
dc.date2004-01-07
dc.date2004-07-22
dc.date.accessioned2026-07-07T08:22:25Z
dc.date.available2026-07-07T08:22:25Z
dc.descriptionNear a Mott transition, strong electron correlations may enhance Cooper pairing. This is demonstrated in the Dynamical Mean Field Theory solution of a twofold-orbital degenerate Hubbard model with inverted Hund's rules on-site exchange, which favors local spin-singlet configurations. Close to the Mott insulator, which is a local version of a valence bond insulator, a pseudogap non-Fermi-liquid metal, a superconductor, and a normal metal appear, in striking similarity with the physics of the cuprates. The strongly correlated superconducting state has a larger Drude weight than the corresponding normal state. The role of the impurity Kondo problem is underscored.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0401090
dc.identifierhttp://arxiv.org/abs/cond-mat/0401090
dc.identifierPhys. Rev. Lett. 93, 047001 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.047001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/135645
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleStrongly Correlated Superconductivity and Pseudogap Phase near a multi-band Mott Insulator
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