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arXiv · 1506.08500

Pseudo-Spin Based Dynamical Model for Polarisation Switching in Ferroelectrics

Zidong Wang·Malcolm J. Grimson
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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.

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Zidong Wang, Malcolm J. Grimson. 2015-06-29. Pseudo-Spin Based Dynamical Model for Polarisation Switching in Ferroelectrics. https://arxiv.org/abs/1506.08500

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