Ferromagnetism in single-band Hubbard models with a partially flat band
Mielke, Andreas
arXiv, 9904258 / Harvested from arXiv
Text on arXiv
A Hubbard model with a single, partially flat band has ferromagnetic ground states. It is shown that local stability of ferromagnetism implies its global stability in such a model: The model has only ferromagnetic ground states if there are no single spin-flip ground states. Since a single-band Hubbard model away from half filling describes a metal, this result may open a route to metallic ferromagnetism in single band Hubbard models.
Publié le : 1999-04-19
Classification:  Condensed Matter - Strongly Correlated Electrons,  Mathematical Physics 
@article{9904258,
     author = {Mielke, Andreas},
     title = {Ferromagnetism in single-band Hubbard models with a partially flat band},
     journal = {arXiv},
     volume = {1999},
     number = {0},
     year = {1999},
     language = {en},
     url = {http://dml.mathdoc.fr/item/9904258}
}

Mielke, Andreas. Ferromagnetism in single-band Hubbard models with a partially flat band. arXiv, Tome 1999 (1999) no. 0, . http://gdmltest.u-ga.fr/item/9904258/