Ferromagnetism and Kondo Insulator Behavior in the Disordered Periodic Anderson Model
Strongly Correlated Electrons
2009-11-13 v1
Abstract
The effect of binary alloy disorder on the ferromagnetic phases of f-electron materials is studied within the periodic Anderson model. We find that disorder in the conduction band can drastically enhance the Curie temperature due to an increase of the local f-moment. The effect may be explained qualitatively and even quantitatively by a simple theoretical ansatz. The emergence of an alloy Kondo insulator at non-integer filling is also pointed out.
Keywords
Cite
@article{arxiv.0801.3934,
title = {Ferromagnetism and Kondo Insulator Behavior in the Disordered Periodic Anderson Model},
author = {Unjong Yu and Krzysztof Byczuk and Dieter Vollhardt},
journal= {arXiv preprint arXiv:0801.3934},
year = {2009}
}
Comments
5 pages, 3 figures