Crystal growth and characterisation of KTiOAsO4

Gallagher, H. G., Qi, X, Sherwood, J. N. and Vrcelj, R. M. (2001) Crystal growth and characterisation of KTiOAsO4. Journal of Crystal Growth, 224 (3-4). pp. 303-308. ISSN 0022-0248

Full content URL: http://dx.doi.org/10.1016/S0022-0248(01)01015-6

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Abstract

Crystals of potassium titanyl arsenate were prepared by top seeded solution growth from a tungstate flux. X-ray
topography revealed extensive growth banding in several sectors, associated with temperature induced fluctuations in
composition and impurity content. This was confirmed to some extent by energy dispersive X-ray analysis
measurements which revealed significant levels of tungsten incorporation from the flux and higher levels of iron
impurity from the starting materials. The overall dislocation density in (0 1 1) and (0 0 1) growth sectors was determined
to be 5102 cm�2. X-ray diffraction rocking curve measurements confirmed a low average strain across the crystal.

Keywords:X-ray topography, Top seeded solution growth, Arsenates, Nonlinear optic materials
Subjects:F Physical Sciences > F130 Structural Chemistry
Divisions:College of Science > School of Pharmacy
ID Code:16742
Deposited On:18 Feb 2015 11:28

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