D-wave Bipolaronic Condensate with Short Range Repulsive Electronic Correlations in an Extended Hubbard Model of High Tc Cuprate Superconductors
2001 (English)In: Advances in Quantum Chemistry, ISSN 0065-3276, Vol. 40, 225-247 p.Article in journal (Refereed) Published
The question as to whether Fermion pairs interacting with a short range Coulomb repulsion and longer range attractive tail can form a Condensate is a key question for High Temperature Superconductivity [1–30]. If such a form of interaction can support a bound state it is commonly suggested that Bose-Einstein condensation of such pairs may occur, as in widely discussed Bipolaron models of High Temperature Cuprate superconductivity where the paired Fermions are holes. On the other hand it is frequently stated that strongly overlapping real-space pairing with a strong short range Coulomb repulsion is a priori implausible . In this paper a review is made of our work on D-wave pairing [7–19] in real-space between electrons on a Cuprate lattice due to any effective interaction with a short range repulsive part and a longer range attractive tail such as might arise from Bipolaronic coupling.
Place, publisher, year, edition, pages
2001. Vol. 40, 225-247 p.
Materials Engineering Theoretical Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-41313DOI: 10.1016/S0065-3276(01)40018-9OAI: oai:DiVA.org:uu-41313DiVA: diva2:69214