Title
Microscopic model of cuprate superconductivityMicroscopic model of cuprate superconductivity
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Department of Physics
Publication type
article
Publication
New York, N.Y.,
Subject
Physics
Source (journal)
International journal of quantum chemistry. - New York, N.Y.
Volume/pages
110(2010):15, p. 2808-2822
ISSN
0020-7608
ISI
000283761900010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We present a model for cuprate superconductivity based on the identification of an experimentally detected local superconductor as a charge 2 fermion pairing in a circular, stationary density wave. This wave acts like a highly correlated local boson satisfying a modified Cooper problem with additional correlation stabilization relative to the separate right- and left-handed density waves composing it. This local boson could be formed in a two-bound roton-like manner; it has Fermion statistics. Delocalized superconductive pairing (superconductivity) is achieved by a Feshbach resonance of two unpaired holes (electrons) resonating with a virtual energy level of the bound pair state of the local boson as described by the previously discussed Boson-Fermion-Gossamer (BFG) model. The spin-charge order interaction offers a microscopic basis for the cuprate Tc's. The spin-charge interaction correlates Tc with experimental inelastic neutron and electron Raman scattering is proposed, based on the energy of the virtual bound pair. These and other modifications discussed, suggest a BFG-based microscopic explanation for the entire cuprate superconductivity dome shape.
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