Fluctuation Effects And Order Parameter Symmetry In The Cuprate Superconductors
Condensed Matter
2009-10-28 v1
Abstract
Effect of phase fluctuations on superconducting states with anisotropic order parameters is studied in a BCS like lattice model of cuprate superconductors. The degradation of the mean field transition temperature due to phase fluctuations is estimated within a Kosterlitz-Thouless scenario. Values of the interaction parameters for optimal doping, corresponding to a stable superconducting state of symmetry, which fit the nodal structure of the superconducting order parameter in the Bi2212 compound, are obtained. The angular position of the node is found to be insensitive to the dopant concentration.
Keywords
Cite
@article{arxiv.cond-mat/9604192,
title = {Fluctuation Effects And Order Parameter Symmetry In The Cuprate Superconductors},
author = {Biplab Chattopadhyay and D. M. Gaitonde and A. Taraphder},
journal= {arXiv preprint arXiv:cond-mat/9604192},
year = {2009}
}
Comments
Latex file, 8 output pages, 5 figures (available from Authors on request), to appear in Europhysics Letters