Excitonic Phase Transition in Electronic Systems
Condensed Matter
2009-10-28 v1
Abstract
Although predicted theoretically excitonic phase transitions have never been observed. Recently it has been claimed that they can occur in some strongly correlated materials. We study the possibility of an excitonic transition in a two-band model and show that a true phase transition never occurs in the presence of hybridization. We suggest an alternative interpretation for these experiments based on the opening or closing of a hybridization gap at a critical pressure.
Keywords
Cite
@article{arxiv.cond-mat/9511067,
title = {Excitonic Phase Transition in Electronic Systems},
author = {M. A. Continentino and G. M. Japiassu and A. Troper},
journal= {arXiv preprint arXiv:cond-mat/9511067},
year = {2009}
}
Comments
14 pages, Latex, no figures, accepted for publication in J.Phys.:Condensed Matter