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Shapes of isolated domains and field induced evolution of regular and random 2D domain structures in LiNbO3 and LiTaO3

Shapes of isolated domains and field induced evolution of regular and random 2D domain structures in LiNbO3 and LiTaO3
Shapes of isolated domains and field induced evolution of regular and random 2D domain structures in LiNbO3 and LiTaO3
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.
ferroelectrics, LiNbO3, LiTaO3, domains
0921-5107
109-113
Chernykh, A.P.
93da19dd-cd03-48c7-877f-4e57b63db1c6
Shur, V.
1e10b499-44dc-4dbc-86d5-a2ba64c4bbe0
Nikolaeva, E.V.
983e2b96-b1fd-41c3-9324-3a7b09702ecf
Shishkin, E.
31307526-29bb-47ce-82a0-a0f531284f4c
Shur, A.
29019f50-c348-46dd-b562-5d3c396978d0
Terabe, K.
2a598a96-371f-441e-8b12-36377bbfd05f
Kurimura, S.
e48426bd-5c91-4b8e-9197-a53d8d13671e
Kitamura, K.
83aa6905-674d-409e-b0d2-067ca1db0fed
Gallo, K.
e9985849-7c3f-4e67-9eb3-d91514f96a9f
Chernykh, A.P.
93da19dd-cd03-48c7-877f-4e57b63db1c6
Shur, V.
1e10b499-44dc-4dbc-86d5-a2ba64c4bbe0
Nikolaeva, E.V.
983e2b96-b1fd-41c3-9324-3a7b09702ecf
Shishkin, E.
31307526-29bb-47ce-82a0-a0f531284f4c
Shur, A.
29019f50-c348-46dd-b562-5d3c396978d0
Terabe, K.
2a598a96-371f-441e-8b12-36377bbfd05f
Kurimura, S.
e48426bd-5c91-4b8e-9197-a53d8d13671e
Kitamura, K.
83aa6905-674d-409e-b0d2-067ca1db0fed
Gallo, K.
e9985849-7c3f-4e67-9eb3-d91514f96a9f

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 and LiTaO3. Materials Science and Engineering: B, 120 (1-3), 109-113. (doi:10.1016/j.mseb.2005.02.007).

Record type: Article

Abstract

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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More information

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

Identifiers

Local EPrints ID: 30191
URI: https://eprints.soton.ac.uk/id/eprint/30191
ISSN: 0921-5107
PURE UUID: 1103b432-a9fe-44c1-850e-701fe862d5cb

Catalogue record

Date deposited: 11 May 2006
Last modified: 17 Jan 2019 17:31

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