Refractive index of ferroelectric Pb2ScTaO6 single crystals around the phase transition

Authors
Sarov, Y Sainov, S Marinova, V
Citation
Y. Sarov et al., Refractive index of ferroelectric Pb2ScTaO6 single crystals around the phase transition, MAT SCI E B, 83(1-3), 2001, pp. 231-234
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
ISSN journal
09215107 → ACNP
Volume
83
Issue
1-3
Year of publication
2001
Pages
231 - 234
Database
ISI
SICI code
0921-5107(20010621)83:1-3<231:RIOFPS>2.0.ZU;2-G
Abstract
A modified prism method has been used for the Refractive Index (RI) determi nation of lead scandium tantalate Pb2ScTaO6 (PST) single crystals with pero vskite structure. The crystals are obtained by the High Temperature Solutio n Growth (HTSG) method. The RI values of PST crystalline prism are measured with error of +/- 2 x 10 (- 3) in the temperature range 0-40 degreesC. A j ump around 15 degreesC is observed in the temperature dependence of RI, whi ch is explained by the presence of the diffuse paraelectric (PE)-ferroelect ric (FE) phase transition. Transmission spectra (TS) in the same temperatur e range are presented. (C) 2001 Elsevier Science B.V. All rights reserved.