SIMULATION OF STRUCTURE OF LiNbO3 CRYSTALS GROWN WITH USING OF B2O3 FLUX

It is shown that the B3+ element is able to incorporate into the facets of oxygen tetrahedra of LiNbO3 crystal structure ( [BO3]3- group) in a trace amounts ( ≈10^(-4) wt. %). In this case, boron noticeably distorts the anion sublattice of the crystal, changing the lengths of the <O — O> bon...

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Bibliographic Details
Published in:Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
Main Authors: R.A. Titov, V.M. Voskresenskiy, N.V. Sidorov, N.A. Teplyakova, M.N. Palatnikov
Format: Article
Language:Russian
Published: Tver State University 2020-12-01
Subjects:
single crystal
lithium niobate
boron oxide
infrared absorption
raman spectroscopy
computer simulation
Online Access:https://physchemaspects.ru/2020/doi-10-26456-pcascnn-2020-12-206/
Description
Summary:It is shown that the B3+ element is able to incorporate into the facets of oxygen tetrahedra of LiNbO3 crystal structure ( [BO3]3- group) in a trace amounts ( ≈10^(-4) wt. %). In this case, boron noticeably distorts the anion sublattice of the crystal, changing the lengths of the <O — O> bonds, increasing the ordering of structural units of the cation sublattice. At the same time, boron changes the polarizability of the oxygen-octahedral MeO6 clusters ( Me — Li, Nb ) which determines the ferroelectric and nonlinear optical properties of the crystal.
ISSN:2226-4442
2658-4360

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