Continuous canonical transformation for the double exchange model
Strongly Correlated Electrons
2009-11-07 v1
Abstract
The method of continuous canonical transformation is applied to the double exchange model with a purpose to eliminate the interaction term responsible for non conservation of magnon number. Set of differential equations for the effective Hamiltonian parameters is derived. Within the lowest order (approximate) solution we reproduce results of the standard (single step) canonical transformation. Results of the selfconsistent numerical treatment are compared with the other known studies for this model.
Keywords
Cite
@article{arxiv.cond-mat/0107331,
title = {Continuous canonical transformation for the double exchange model},
author = {T. Domanski},
journal= {arXiv preprint arXiv:cond-mat/0107331},
year = {2009}
}
Comments
21 pages, 9 figures. Eur. Phys. J B (accepted for publication)