Ferroelectric Phase Transitions in a Lattice Pseudo-Jahn-Teller Model
arXiv:cond-mat/0310599
Abstract
A lattice generalization of the pseudo-Jahn-Teller model is analyzed within mean-field theory. Ferroelectric or antiferroelectric ground states are found for sufficiently large pseudo-Jahn-Teller coupling.
4 pages, 2 figures