Refractive index of ferroelectric Pb2ScTaO6 single crystals around the phase transition

被引：0
|
作者：
Sarov, Y [1 ]
Sainov, S [1 ]
Marinova, V [1 ]
机构：
[1] Bulgarian Acad Sci, Cent Lab Opt Storage & Proc Informat, BU-1113 Sofia, Bulgaria
来源：
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2001年 / 83卷 / 1-3期
关键词：
crystal growth; ferroelectric phase transition; optical materials; refractive index; refractometers;
D O I：
10.1016/S0921-5107(01)00554-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A modified prism method has been used for the Refractive Index (RI) determination of lead scandium tantalate Pb2ScTaO6 (PST) single crystals with perovskite structure. The crystals are obtained by the High Temperature Solution 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 jump around 15 degreesC is observed in the temperature dependence of RI, which is explained by the presence of the diffuse paraelectric (PE)-ferroelectric (FE) phase transition. Transmission spectra (TS) in the same temperature range are presented. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：231 / 234
页数：4
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