The Mott-Hubbard metal-insulator transition in the paramagnetic phase of the one-band Hubbard model has long been used to describe similar features in real materials like V2O3. Here we show that this transition is hidden inside a rather robust antiferromagnetic insulator even in the presence of comparatively strong magnetic frustration. This result raises the question of the relevance of the Mott-Hubbard metal-insulator transition for the generic phase diagram of the one-band Hubbard model.
@article{arxiv.cond-mat/0308202,
title = {Phase diagram of the frustrated Hubbard model},
author = {R. Zitzler and N. Tong and Th. Pruschke and R. Bulla},
journal= {arXiv preprint arXiv:cond-mat/0308202},
year = {2009}
}