Crystal growth and characterisation of KTiOAsO4

Gallagher, H. G. and Qi, X and 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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