Perturbative calculation of the spin-wave dispersion in a disordered double-exchange model
Strongly Correlated Electrons
2009-11-10 v1 Disordered Systems and Neural Networks
Abstract
We study the spin-wave dispersion of localized spins in a disordered double-exchange model using the perturbation theory with respect to the strength of the disorder potential. We calculate the dispersion upto the next-leading order, and extensively examine the case of one-dimension. We show that in that case, disorder yields anomalous gapped-like behavior at the Fermi wavenumber of the conduction electrons.
Keywords
Cite
@article{arxiv.cond-mat/0406134,
title = {Perturbative calculation of the spin-wave dispersion in a disordered double-exchange model},
author = {T. Semba and T. Fukui},
journal= {arXiv preprint arXiv:cond-mat/0406134},
year = {2009}
}
Comments
9 pages, 5 figures