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Thermodynamics of Polydomain Ferroelectric Bilayers and Graded Multilayers

A. L. Roytburd·J. Slutsker
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Abstract

The equilibrium domain structure and its evolution under an electric field in ferroelectric bilayers and graded multilayers are considered. The equilibrium bilayer is self-poled and contains a single-domain and a polydomain (with 180 domains) layers. The polarization of a graded multilayer proceeds by movement of wedge-like domains as a result of progressive transformation of polydomain layers to a single-domain state. The theory provides the principal explanation of peculiarities of dielectric behavior of graded ferroelectric films and can be applied to graded ferromagnetics and ferroelastics.

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A. L. Roytburd, J. Slutsker. 2006-04-13. Thermodynamics of Polydomain Ferroelectric Bilayers and Graded Multilayers. https://doi.org/10.1063/1.2220487

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