Two Anderson Impurities in the Kondo Limit, Doublet States
Strongly Correlated Electrons
2007-05-23 v1 Mesoscale and Nanoscale Physics
Abstract
We analyze two pairs of doublet states for the two Anderson impurity problem. We found that for short interimpurity distances they have a lower energy than the ferro triplet and the antiferro singlet. For medium to long distances between the impurities, the doublets also have a lower energy than the two decoupled Kondo-singlet state for most of the range of interest. The mechanism behind their energy gain is an coherence enhanced Kondo-like interaction.
Keywords
Cite
@article{arxiv.cond-mat/0503163,
title = {Two Anderson Impurities in the Kondo Limit, Doublet States},
author = {J. Simonin},
journal= {arXiv preprint arXiv:cond-mat/0503163},
year = {2007}
}
Comments
4 pages, 4 figurea