c-axis conductivity in the normal state of cuprate superconductors
Strongly Correlated Electrons
2009-10-31 v2
Abstract
The c-axis optical conductivity and d.c. resistivity are calculated within the t-J model assuming that the interlayer hopping is incoherent. Use is made of numerical results for spectral functions recently obtained with the finite-temperature Lanczos method for finite two-dimensional systems. In the optimally doped regime we find an anomalous relaxation rate, suggesting a common relaxation mechanism for intra- and interlayer transport. At low doping a pseudo-gap opening in the density of states appears to be responsible for a semimetallic-like behavior of d.c. resistivity.
Keywords
Cite
@article{arxiv.cond-mat/9807315,
title = {c-axis conductivity in the normal state of cuprate superconductors},
author = {P. Prelovsek and A. Ramsak and I. Sega},
journal= {arXiv preprint arXiv:cond-mat/9807315},
year = {2009}
}
Comments
4 pages, 4 Postscript figures, submitted to Phys.Rev.Lett, added a comparisson with in-plane conductivity, rescaled some figures