Pairing in inhomogeneous superconductors

Citation
J. Eroles et al., Pairing in inhomogeneous superconductors, INT J MOD B, 15(10-11), 2001, pp. 1613-1616
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN journal
02179792 → ACNP
Volume
15
Issue
10-11
Year of publication
2001
Pages
1613 - 1616
Database
ISI
SICI code
0217-9792(20010510)15:10-11<1613:PIIS>2.0.ZU;2-Y
Abstract
Starting from a t-J model, we introduce inhomogeneous terms to mimic stripe s. We find that if the inhomogeneous terms break the SU(2) spin symmetry th e binding between holes is tremendously enhanced in the thermodynamic limit . In any other model (including homogeneous models) the binding in the ther modynamic limit is small or neglible. By including these inhomogeneous term s we can reproduce experimental neutron scattering data. We also discuss th e connection of the resulting inhomogeneity-induced superconductivity to re cent experimental evidence for a linear relation between magnetic incommens urability and the superconducting transition temperature, as a function of doping.