The gap symmetry is marginal in high-Tc superconductivity: Isotropic s-wave pairing leads to either s or d-wave gap depending on the Coulomb pseudopotential

Varelogiannis, G; Moro, A

dc.contributor.author	Varelogiannis, G	en
dc.contributor.author	Moro, A	en
dc.date.accessioned	2014-03-01T01:43:33Z
dc.date.available	2014-03-01T01:43:33Z
dc.date.issued	1995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24141
dc.relation.uri	http://arxiv.org/abs/cond-mat/9511139	en
dc.subject	Electron Phonon Interaction	en
dc.subject	high-tc superconductivity	en
dc.subject	Superconductors	en
dc.title	The gap symmetry is marginal in high-Tc superconductivity: Isotropic s-wave pairing leads to either s or d-wave gap depending on the Coulomb pseudopotential	en
heal.type	journalArticle	en
heal.publicationDate	1995	en
heal.abstract	We point out that in two-dimensional systems like high-$T_c$ superconductors,an isotropic s-wave electron-phonon interaction in the momentum decouplingregime leads to either s or d-wave superconductivity depending on theconventional values of the Coulomb pseudopotential. It is therefore possiblethat $YBa_2Cu_3O_7$ is an anisotropic d-wave and $Bi_2Sr_2CaCu_2O_8$ ananisotropic s-wave superconductor both having the same pairing interaction andsimilar	en