Ground state energy of metallic ferromagnet in a generalized Hubbard model
Strongly Correlated Electrons
2007-05-23 v1
Abstract
In the present work ferromagnetic ordering in the Hubbard model generalized by taking into account the inter-atomic exchange interaction and correlated hopping in partially filled narrow band is considered. In the case of weak electron-electron interaction the ground state energy and condition of ferromagnetic state realization are found using the Green function technique. The obtained results indicate the important role of correlated hopping.
Cite
@article{arxiv.cond-mat/0012402,
title = {Ground state energy of metallic ferromagnet in a generalized Hubbard model},
author = {L. Didukh and O. Kramar and Yu. Skorenkyy},
journal= {arXiv preprint arXiv:cond-mat/0012402},
year = {2007}
}
Comments
9 pages, 11 eps figures