CHARACTERIZATION OF KNbO3 CRYSTAL BY TRAVELING SOLVENT FLOATING ZONE (TSFZ) METHOD

The effect of solvent and feed rod composition on optical and electrical properties of KNbO3 crystals grown by the traveling solvent floating zone (TSFZ) method was studied. As-grown crystals were crack-free, blue, semiconductive and had a multidomain structure. Optical transmission decreased with i...

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Published in:Jpn.J.Appl.Phys ,Part 1. Vol. 42, no. 9B, pp. 6099-6101. 2003 Part 1. Vol. 42, no. 9B, pp. 6099-6101. 2003, 2003, Vol.42 (9B), p.6099-6101
Main Authors: Kudo, K, Kakiuchi, K, Mizutani, K, Fukami, T
Format: Article
Language:English
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Summary:The effect of solvent and feed rod composition on optical and electrical properties of KNbO3 crystals grown by the traveling solvent floating zone (TSFZ) method was studied. As-grown crystals were crack-free, blue, semiconductive and had a multidomain structure. Optical transmission decreased with increasing K content in the solvent and feed rod, while the absorption edge remained unchanged at 380 nm. Two discontinuities of electrical conductivity over the range from RT to 500 C were observed. These transition temperatures decreased with increasing K content, whereas the activation energy over the range from RT to 100 C remained unchanged at 0.2 eV. 9 refs.
ISSN:0021-4922
DOI:10.1143/jjap.42.6099