Pseudo-Spin Based Dynamical Model for Polarisation Switching in Ferroelectrics
Mesoscale and Nanoscale Physics
2015-12-08 v2
Abstract
A microscopic view of the response of the electric dipoles to a dynamic external field in a ferroelectric (FE) chain has been studied by two spin dynamics methods. One is the prominent micromagnetic approach, and the other is the micromagnetic approach with a variable size of the pseudo-spin. The energy stored in the ferroelectric chain is described by the transverse Ising model (TIM) with electric pseudo-spins. The simulations are based on a modified Landau-Lifshitz-Gilbert (LLG) equation which is precession free. The results obtained are shown and compared with the result supplemented by Landau-Devonshire (L-D) theory in the Appendix.
Cite
@article{arxiv.1506.08500,
title = {Pseudo-Spin Based Dynamical Model for Polarisation Switching in Ferroelectrics},
author = {Zidong Wang and Malcolm J. Grimson},
journal= {arXiv preprint arXiv:1506.08500},
year = {2015}
}
Comments
4 pages, 4 figures