dc.creatorSica, G
dc.creatorSamson, JH
dc.creatorAlexandrov, AS
dc.date2012
dc.dateNOV
dc.date2014-07-30T14:18:32Z
dc.date2015-11-26T16:39:05Z
dc.date2014-07-30T14:18:32Z
dc.date2015-11-26T16:39:05Z
dc.date.accessioned2018-03-28T23:22:38Z
dc.date.available2018-03-28T23:22:38Z
dc.identifierEpl. Epl Association, European Physical Society, v. 100, n. 3, 2012.
dc.identifier0295-5075
dc.identifierWOS:000311487800030
dc.identifier10.1209/0295-5075/100/37005
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/58380
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/58380
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1272390
dc.descriptionIt has been recently shown that the competition between unscreened Coulomb and Frohlich electron-phonon interactions can be described in terms of a short-range spin exchange J(p) and an effective on-site interaction (U) over tilde in the framework of the polaronic t-J(p)-(U) over tilde model. This model, that provides an explanation for high-temperature superconductivity in terms of Bose-Einstein condensation (BEC) of small and light bipolarons, is now studied as a charged Bose-Fermi mixture. Within this approximation, we show that a gap between bipolaron and unpaired polaron bands results in a strong suppression of low-temperature spin susceptibility, specific heat and tunnelling conductance, signalling the presence of a pseudogap regime in the normal state without any assumptions on pre-existing orders or broken symmetries in the normal state of the model. Copyright (C) EPLA, 2012
dc.description100
dc.description3
dc.languageen
dc.publisherEpl Association, European Physical Society
dc.publisherMulhouse
dc.publisherFrança
dc.relationEpl
dc.relationEPL
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectHigh-t-c
dc.subjectDensity
dc.titlePseudogap in high-temperature superconductors from realistic Frohlich and Coulomb interactions
dc.typeArtículos de revistas


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