Localization effects in disordered Kondo lattices
强关联电子
2007-05-23 v1 无序系统与神经网络
摘要
We investigate the role of localization effects in the Kondo disorder mechanism for non-Fermi liquid behavior in disordered Kondo lattices. We find that the distribution of Kondo temperatures is strongly affected by fluctuations of the conduction electron density of states, a feature neglected in the previous treatment. For moderate disorder, the self-consistent distribution of Kondo temperatures flows to a universal log-normal form, irrespective of the form of the bare disorder distribution. For sufficient disorder, the system enters a Griffiths phase with diverging thermodynamic responses.
引用
@article{arxiv.cond-mat/9808116,
title = {Localization effects in disordered Kondo lattices},
author = {E. Miranda and V. Dobrosavljevic},
journal= {arXiv preprint arXiv:cond-mat/9808116},
year = {2007}
}
备注
3 pages, 3 figures, Proceedings of SCES98/Paris