An extension of Tasaki's flat-band Hubbard model
Strongly Correlated Electrons
2009-11-10 v4
Abstract
We present a new class of flat-band Hubbard models which have saturated ferromagnetic ground states at two distinct electron numbers for different values of parameters. The models are extensions of Tasaki's flat-band models.
Cite
@article{arxiv.cond-mat/0304295,
title = {An extension of Tasaki's flat-band Hubbard model},
author = {Teppei Sekizawa},
journal= {arXiv preprint arXiv:cond-mat/0304295},
year = {2009}
}
Comments
10 pages,3figures