Effect of biexciton on Cooper pairing in high T-c superconductors

Authors
Pandey, RK Singh, SP Singh, P
Citation
Rk. Pandey et al., Effect of biexciton on Cooper pairing in high T-c superconductors, J SUPERCOND, 12(2), 1999, pp. 441-443
Citations number
33
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF SUPERCONDUCTIVITY
ISSN journal
08961107 → ACNP
Volume
12
Issue
2
Year of publication
1999
Pages
441 - 443
Database
ISI
SICI code
0896-1107(199904)12:2<441:EOBOCP>2.0.ZU;2-H
Abstract
In this paper, we have modified the Cooper theory by considering a biexcito nic attractive interaction for high T-c superconductors. We have developed an expression for (2 Delta/KBTc) as a function of phonon and biexciton medi ated coupling constants. For the sake of simplicity, we use a two-square-we ll potential model (electron-phonon and electron-biexciton). The calculated values of (2 Delta/KBTc) show good agreement with experimental values.