Ferrotoroidic Moment as a Quantum Geometric Phase
Strongly Correlated Electrons
2009-11-13 v1
Abstract
We present a geometric characterization of the ferrotoroidic moment in terms of a set of Abelian Berry phases. We also introduce a fundamental complex quantity which provides an alternative way to calculate the ferrotoroidic moment and its moments, and is derived from a second order tensor. This geometric framework defines a natural computational approach for density functional and many-body theories.
Keywords
Cite
@article{arxiv.0811.3656,
title = {Ferrotoroidic Moment as a Quantum Geometric Phase},
author = {C. D. Batista and G. Ortiz and A. A. Aligia},
journal= {arXiv preprint arXiv:0811.3656},
year = {2009}
}