Crystal Distortion and the Two-Channel Kondo Effect
Strongly Correlated Electrons
2009-10-31 v1
Abstract
We study a simple model of the two-channel Kondo effect in a distorted crystal. This model is then used to investigate the interplay of the Kondo and Jahn-Teller effects, and also the Kondo effect in an impure crystal. We find that the Jahn-Teller interaction modifies the characteristic energy scale of the system below which non-Fermi-liquid properties of the model become apparent. The modified energy scale tends to zero as the limit of a purely static Jahn-Teller effect is approached. We find also that the non-Fermi-liquid properties of the quadrupolar Kondo effect are not stable against crystal distortion caused by impurities.
Cite
@article{arxiv.cond-mat/9806218,
title = {Crystal Distortion and the Two-Channel Kondo Effect},
author = {C. N. Hind and A. O. Gogolin},
journal= {arXiv preprint arXiv:cond-mat/9806218},
year = {2009}
}
Comments
11 pages