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Anisotropic domain structure of KTiOPO{sub 4} crystals

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.1385575· OSTI ID:40230562
Highly anisotropic ferroelectric domain structure is observed in KTiOPO{sub 4} (KTP) crystals reversed by low electric field. The applied Miller--Weinreich model for sidewise motion of domain walls indicates that this anisotropy results from the peculiarities of KTP crystal lattice. The domain nuclei of dozen nanometer size, imaged by atomic force microscopy method, demonstrate regular hexagonal forms. The orientation of domain walls of the elementary nuclei coincides with the orientation of the facets of macroscopic KTP crystals. The observed strong domain elongation along one principal crystal axis allows us to improve tailoring of ferroelectric domain engineered structures for nonlinear optical converters. {copyright} 2001 American Institute of Physics.
Sponsoring Organization:
(US)
OSTI ID:
40230562
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 4 Vol. 90; ISSN 0021-8979
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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