Natural optical activity and its control by electric field in electrotoroidic systems
Materials Science
2013-06-12 v2
Abstract
We propose the existence, via analytical derivations, novel phenomenologies, and first-principles-based simulations, of a new class of materials that are not only spontaneously optically active, but also for which the sense of rotation can be switched by an electric field applied to them-- via an induced transition between the dextrorotatory and laevorotatory forms. Such systems possess electric vortices that are coupled to a spontaneous electrical polarization. Furthermore, our atomistic simulations provide a deep microscopic insight into, and understanding of, this class of naturally optically active materials.
Cite
@article{arxiv.1306.2189,
title = {Natural optical activity and its control by electric field in electrotoroidic systems},
author = {Sergey Prosandeev and Andrei Malashevich and Zhigang Gui and Lydie Louis and Raymond Walter and Ivo Souza and L. Bellaiche},
journal= {arXiv preprint arXiv:1306.2189},
year = {2013}
}
Comments
3 figures