Topological polarization in disordered systems
Mathematical Physics
2022-10-19 v1 math.MP
Abstract
Deformations in piezoelectric materials lead to conduction effects, which are due to two contributions: the relative displacements of the ionic cores, and the so-called orbital polarization. This work is devoted to the rigorous derivation of the celebrated King-Smith and Vanderbilt formula for orbital polarization in a generalized setting that includes continuous random systems among others.
Cite
@article{arxiv.2210.09860,
title = {Topological polarization in disordered systems},
author = {Giuseppe De Nittis and Danilo Polo},
journal= {arXiv preprint arXiv:2210.09860},
year = {2022}
}
Comments
22 pages. Keywords: Piezoelectricity, orbital polarization, King-Smith and Vanderbilt formula