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Shapes of isolated domains and field induced evolution of regular and random 2D domain structures in LiNbO3

Chernykh, A.P., Shur, V., Nikolaeva, E.V., Shishkin, E., Shur, A., Terabe, K., Kurimura, S., Kitamura, K. and Gallo, K. (2005) Shapes of isolated domains and field induced evolution of regular and random 2D domain structures in LiNbO3 Materials Science and Engineering: B, 120, (1-3), pp. 109-113. (doi:10.1016/j.mseb.2005.02.007).

Record type: Article


The variety of the shapes of isolated domains, revealed in congruent and stoichiometric LiTaO3 and LiNbO3 by chemical etching and visualized by optical and scanning probe microscopy, was obtained by computer simulation. The kinetic nature of the domain shape was clearly demonstrated. The kinetics of domain structure with the dominance of the growth of the steps formed at the domain walls as a result of domain merging was investigated experimentally in slightly distorted artificial regular two-dimensional (2D) hexagonal domain structure and random natural one. The artificial structure has been realized in congruent LiNbO3 by 2D electrode pattern produced by photolithography. The polarization reversal in congruent LiTaO3 was investigated as an example of natural domain growth limited by merging. The switching process defined by domain merging was studied by computer simulation. The crucial dependence of the switching kinetics on the nuclei concentration has been revealed.

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Published date: 2005
Keywords: ferroelectrics, LiNbO3, LiTaO3, domains


Local EPrints ID: 30191
ISSN: 0921-5107
PURE UUID: 1103b432-a9fe-44c1-850e-701fe862d5cb

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Date deposited: 11 May 2006
Last modified: 17 Jul 2017 15:55

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Author: A.P. Chernykh
Author: V. Shur
Author: E.V. Nikolaeva
Author: E. Shishkin
Author: A. Shur
Author: K. Terabe
Author: S. Kurimura
Author: K. Kitamura
Author: K. Gallo

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