Berryonic Matter in the Cuprates
Superconductivity
2007-05-23 v1
Abstract
A novel form of Jahn-Teller (JT) effect in the cuprates can be reinterpreted as a conventional JT effect on a lattice with a larger unit cell. There is a triplet of instabilities, parametrized by a pseudospin, consisting of a form of the low-temperature tetragonal phase, a charge density wave phase, and a flux phase (orbital antiferromagnet). On a single 4-Cu plaquette, the problem is of E x (b_1+b_2) form. For a special choice of parameters, the model supports a dynamic JT effect, but is classically chaotic. The connection of this phase with Berryonic matter is discussed.
Cite
@article{arxiv.cond-mat/0102453,
title = {Berryonic Matter in the Cuprates},
author = {R. S. Markiewicz},
journal= {arXiv preprint arXiv:cond-mat/0102453},
year = {2007}
}
Comments
Presented at the 15th Int. Jahn-Teller Symposium, Boston, 2000, 2 eps figures