Statistical switching kinetics in ferroelectrics

Details Statistical switching kinetics in ferroelectrics Statistical switching kinetics in ferroelectrics

2008-07-16

arxiv.org/abs/0807.2494v1

J. Phys.: Condens. Matter 21 (2009) 012207

Physics

Data Analysis, Statistics and Probability

Scientific paper

10.1088/0953-8984/21/1/012207

By assuming a more realistic nucleation and polarization reversal scenario we build a new statistical switching model for ferroelectrics, which is different from either the Kolmogorov-Avrami-Ishibashi (KAI) model or the Nucleation-Limited-Switching (NLS) model. After incorporating a time-dependent depolarization field this model gives a good description about the retardation behavior in polycrystalline thin films at medium or low fields, which can not be described by the traditional KAI model. This model predicts correctly n=1 for polycrystalline thin films at high Eappl or ceramic bulks in the ideal case.

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