Exact many-electron ground states on the diamond Hubbard chain
Strongly Correlated Electrons
2007-07-17 v1
Abstract
Exact ground states of interacting electrons on the diamond Hubbard chain in a magnetic field are constructed which exhibit a wide range of properties such as flat-band ferromagnetism and correlation induced metallic, half-metallic or insulating behavior. The properties of these ground states can be tuned by changing the magnetic flux, local potentials, or electron density.
Keywords
Cite
@article{arxiv.cond-mat/0703818,
title = {Exact many-electron ground states on the diamond Hubbard chain},
author = {Zsolt Gulacsi and Arno Kampf and Dieter Vollhardt},
journal= {arXiv preprint arXiv:cond-mat/0703818},
year = {2007}
}
Comments
4 pages, 2 figures