Structural defects in flux-grown stoichiometric LiNbO3 single crystals

K. Polgár, Á Péter, I. Földvári, Zs Szaller

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The effect of growth conditions on the crystal perfection of stoichiometric lithium niobate LiNbO3 prepared by the high-temperature top-seeded solution growth technique (HTTSSG) from potassium containing flux was investigated. Flux compositions between 0.09 and 0.21 K2O/LiNbO3 ratio were tested, and it was found that LiNbO3 forms an eutectic system with the K2O, which is considered as the solvent in the system. The exact composition of the eutectic is close to the 1:5 molar ratio of K2O and LiNbO3. Stoichiometric crystals with homogeneous composition were grown from fluxes in the range of 0.16-0.195 K2O/LiNbO3 ratio. The formation of the structural defects (faceting and ferroelectric domain reversal) have been examined for growth along the Z = 〈0 0 0 1〉, Y = 〈0 1 1̄0〉, X = 〈2 1̄1̄0〉, 〈0 1 1̄1〉 and 〈0 2̄2 1〉 directions. The development of facets occurred primarily along the {01.2} pyramidal planes. Close connection was found between faceted growth and the appearance of domain reversal.

Original languageEnglish
Pages (from-to)327-333
Number of pages7
JournalJournal of Crystal Growth
Volume218
Issue number2
DOIs
Publication statusPublished - Sep 15 2000

Fingerprint

Single crystals
Fluxes
Defects
single crystals
defects
eutectics
Eutectics
Chemical analysis
Crystals
lithium niobates
Ferroelectric materials
crystals
Potassium
flat surfaces
potassium
Lithium
lithium niobate
Temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Structural defects in flux-grown stoichiometric LiNbO3 single crystals. / Polgár, K.; Péter, Á; Földvári, I.; Szaller, Zs.

In: Journal of Crystal Growth, Vol. 218, No. 2, 15.09.2000, p. 327-333.

Research output: Contribution to journalArticle

@article{5ea8d6b414f94ddcb8130bdc2fa247e6,
title = "Structural defects in flux-grown stoichiometric LiNbO3 single crystals",
abstract = "The effect of growth conditions on the crystal perfection of stoichiometric lithium niobate LiNbO3 prepared by the high-temperature top-seeded solution growth technique (HTTSSG) from potassium containing flux was investigated. Flux compositions between 0.09 and 0.21 K2O/LiNbO3 ratio were tested, and it was found that LiNbO3 forms an eutectic system with the K2O, which is considered as the solvent in the system. The exact composition of the eutectic is close to the 1:5 molar ratio of K2O and LiNbO3. Stoichiometric crystals with homogeneous composition were grown from fluxes in the range of 0.16-0.195 K2O/LiNbO3 ratio. The formation of the structural defects (faceting and ferroelectric domain reversal) have been examined for growth along the Z = 〈0 0 0 1〉, Y = 〈0 1 1̄0〉, X = 〈2 1̄1̄0〉, 〈0 1 1̄1〉 and 〈0 2̄2 1〉 directions. The development of facets occurred primarily along the {01.2} pyramidal planes. Close connection was found between faceted growth and the appearance of domain reversal.",
author = "K. Polg{\'a}r and {\'A} P{\'e}ter and I. F{\"o}ldv{\'a}ri and Zs Szaller",
year = "2000",
month = "9",
day = "15",
doi = "10.1016/S0022-0248(00)00600-X",
language = "English",
volume = "218",
pages = "327--333",
journal = "Journal of Crystal Growth",
issn = "0022-0248",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Structural defects in flux-grown stoichiometric LiNbO3 single crystals

AU - Polgár, K.

AU - Péter, Á

AU - Földvári, I.

AU - Szaller, Zs

PY - 2000/9/15

Y1 - 2000/9/15

N2 - The effect of growth conditions on the crystal perfection of stoichiometric lithium niobate LiNbO3 prepared by the high-temperature top-seeded solution growth technique (HTTSSG) from potassium containing flux was investigated. Flux compositions between 0.09 and 0.21 K2O/LiNbO3 ratio were tested, and it was found that LiNbO3 forms an eutectic system with the K2O, which is considered as the solvent in the system. The exact composition of the eutectic is close to the 1:5 molar ratio of K2O and LiNbO3. Stoichiometric crystals with homogeneous composition were grown from fluxes in the range of 0.16-0.195 K2O/LiNbO3 ratio. The formation of the structural defects (faceting and ferroelectric domain reversal) have been examined for growth along the Z = 〈0 0 0 1〉, Y = 〈0 1 1̄0〉, X = 〈2 1̄1̄0〉, 〈0 1 1̄1〉 and 〈0 2̄2 1〉 directions. The development of facets occurred primarily along the {01.2} pyramidal planes. Close connection was found between faceted growth and the appearance of domain reversal.

AB - The effect of growth conditions on the crystal perfection of stoichiometric lithium niobate LiNbO3 prepared by the high-temperature top-seeded solution growth technique (HTTSSG) from potassium containing flux was investigated. Flux compositions between 0.09 and 0.21 K2O/LiNbO3 ratio were tested, and it was found that LiNbO3 forms an eutectic system with the K2O, which is considered as the solvent in the system. The exact composition of the eutectic is close to the 1:5 molar ratio of K2O and LiNbO3. Stoichiometric crystals with homogeneous composition were grown from fluxes in the range of 0.16-0.195 K2O/LiNbO3 ratio. The formation of the structural defects (faceting and ferroelectric domain reversal) have been examined for growth along the Z = 〈0 0 0 1〉, Y = 〈0 1 1̄0〉, X = 〈2 1̄1̄0〉, 〈0 1 1̄1〉 and 〈0 2̄2 1〉 directions. The development of facets occurred primarily along the {01.2} pyramidal planes. Close connection was found between faceted growth and the appearance of domain reversal.

UR - http://www.scopus.com/inward/record.url?scp=0342520902&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0342520902&partnerID=8YFLogxK

U2 - 10.1016/S0022-0248(00)00600-X

DO - 10.1016/S0022-0248(00)00600-X

M3 - Article

AN - SCOPUS:0342520902

VL - 218

SP - 327

EP - 333

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

SN - 0022-0248

IS - 2

ER -