Abstract
The phenomenological Landau theory of phase transition is generalized to finite ferroelectric crystals with surface energy. Restrictions of the expansion imposed by the symmetry of the surface are considered, and further analysis is devoted to a special case. The solution in the approximation of constant polarization is discussed. Single domain states of a plate are analysed in greater detail.
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The authors are very grateful to Dr. V.Janovec and Dr. J.Fousek of the Czechoslovak Academy of Sciences for helpful discussions. Thanks are due to Prof. L.Valenta for the valuable discussions dealing with the magnetical analogical problem.
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Yurkevich, V.E., Marvan, M. & Rolov, B.N. Thermodynamic theory of finite ferroelectric crystals with surface energy. Czech J Phys 29, 562–569 (1979). https://doi.org/10.1007/BF01600177
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DOI: https://doi.org/10.1007/BF01600177