Protracted Screening in the Periodic Anderson Model
Strongly Correlated Electrons
2009-10-28 v1
Abstract
The asymmetric infinite-dimensional periodic Anderson model is examined with a quantum Monte Carlo simulation. For small conduction band filling, we find a severe reduction in the Kondo scale, compared to the impurity value, as well as protracted spin screening consistent with some recent controversial photoemission experiments. The Kondo screening drives a ferromagnetic transition when the conduction band is quarter-filled and both the RKKY and superexchange favor antiferromagnetism. We also find RKKY-driven ferromagnetic and antiferromagnetic transitions.
Keywords
Cite
@article{arxiv.cond-mat/9610188,
title = {Protracted Screening in the Periodic Anderson Model},
author = {A. N. Tahvildar-Zadeh and M. Jarrell and J. K. Freericks},
journal= {arXiv preprint arXiv:cond-mat/9610188},
year = {2009}
}
Comments
5 pages, LaTeX and 4 PS figures