Antiferromagnetic fluctuations and d-wave superconductivity in electron-doped high-temperature superconductors
Strongly Correlated Electrons
2009-11-07 v2 Superconductivity
Abstract
We show that, at weak to intermediate coupling, antiferromagnetic fluctuations enhance d-wave pairing correlations until, as one moves closer to half-filling, the antiferromagnetically-induced pseudogap begins to suppress the tendency to superconductivity. The accuracy of our approach is gauged by detailed comparisons with Quantum Monte Carlo simulations. The negative pressure dependence of Tc and the existence of photoemission hot spots in electron-doped cuprate superconductors find their natural explanation within this approach.
Keywords
Cite
@article{arxiv.cond-mat/0205165,
title = {Antiferromagnetic fluctuations and d-wave superconductivity in electron-doped high-temperature superconductors},
author = {B. Kyung and J. S. Landry and A. -M. S. Tremblay},
journal= {arXiv preprint arXiv:cond-mat/0205165},
year = {2009}
}
Comments
v1 contains mathematical details. v2 contains more results and less formalism. Same conclusions. Latex, Revtex4, 4 pages, 4 eps figures