Short-range antiferromagnetic correlations in Kondo insulators
Strongly Correlated Electrons
2009-10-31 v3
Abstract
We study the influence of short range antiferromagnetic correlations between local -electrons on the transport and thermodynamic properties of Kondo insulators, as first proposed by Coqblin et al. for metallic heavy fermions. The inter-site magnetic correlations produce an effective bandwidth for the -electrons. They are treated on the same footing as the local Kondo correlations such that two energy scales appear in our approach. We discuss the competition between these two scales on the physical properties.
Keywords
Cite
@article{arxiv.cond-mat/9904221,
title = {Short-range antiferromagnetic correlations in Kondo insulators},
author = {Tatiana G. Rappoport and M. S. Figueira and M. A. Continentino},
journal= {arXiv preprint arXiv:cond-mat/9904221},
year = {2009}
}
Comments
13 pages, 13 figures. To be published in Physics Letters A