English

D-wave overlapping band model for cuprate superconductors

Superconductivity 2009-06-19 v1

Abstract

Within the BCS framework a multiband model with d-wave symmetry is considered. Generalized Fermi surface topologies via band overlapping are introduced. The band overlap scale is of the order of the Debye energy. The order parameters and the pairing have d-wave symmetry. Experimental values reported for the critical temperatures Tc(x)T_c(x) and the order parameters, Δ0(x)\Delta_0(x), in terms of dopping xx are used. Numerical results for the coupling and the band overlapping parameters in terms of the doping are obtained for the cuprate superconductor La2xSrxCuO4La_{2-x}Sr_xCuO_4.

Keywords

Cite

@article{arxiv.0906.3324,
  title  = {D-wave overlapping band model for cuprate superconductors},
  author = {Susana Orozco and Rosa María Méndez-Moreno and María de los Angeles Ortiz and Gabriela Murguía},
  journal= {arXiv preprint arXiv:0906.3324},
  year   = {2009}
}

Comments

5 pages, 4 Postscript figures

R2 v1 2026-06-21T13:14:51.201Z