Simultaneous dielectric and A.C. electrooptic measurements near the phase transition of tanane
- 1 January 1978
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 21 (1) , 365-367
- https://doi.org/10.1080/00150197808237266
Abstract
The complex electrooptic coefficient f 63 (v, T) has been measured over a large frequency range (0.0003 HzTc ). A critical dispersion has been observed at very low frequency, and is attributed to static defects or mechanical imperfections. In the vicinity of Tc . simultaneous measurements of the dielectric constant ε33 (1500 Hz) and the electrooptic coefficient. f 63 (1500 Hz) show that they are linearly coupled by a temperature independent coefficient which is not affected by the dispersion.Keywords
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