Non-Fermi liquid behavior in an extended Anderson model
Condensed Matter
2009-10-28 v1
Abstract
An extended Anderson model, including screening channels (non-hybridizing, but interacting with the local orbit), is studied within the Anderson-Yuval approach, originally devised for the single-channel Kondo problem. By comparing the perturbation expansions of this model and a generalized resonant level model, the spin-spin correlation functions are calculated which show non-Fermi liquid exponent depending on the strength of the scattering potential. The relevance of this result to experiments in some heavy fermion systems is briefly discussed.
Cite
@article{arxiv.cond-mat/9608128,
title = {Non-Fermi liquid behavior in an extended Anderson model},
author = {Yu-Liang Liu and Zhao-Bin Su and Lu Yu},
journal= {arXiv preprint arXiv:cond-mat/9608128},
year = {2009}
}
Comments
REVTEX, 17 pages, no figures, to be published in Phys. Rev. B