Anomalous Dielectric Spectra of Ferro- and Ferrielectric Liquid Crystalline Phase in MHPNBC.
- Resource Type
- Article
- Authors
- DUBOIS, F.; DOUALI, R.; WAWRZYNIAK, A. I.; LEGRAND, CH.; ROPA, P.; WRÓBEL, S.; DĄBROWSKI, R.
- Source
- Acta Physica Polonica: A. Dec2013, Vol. 124 Issue 6, p937-939. 3p.
- Subject
- *ELECTRIC fields
*FERROELECTRIC liquid crystals
*ANTIFERROELECTRIC liquid crystals
*POLYMER liquid crystals
*DIFFERENTIAL scanning calorimetry
*POLARIZING microscopes
- Language
- ISSN
- 0587-4246
MHPOBC analogue with long achiral alkyl chain has been investigated by dielectric spectroscopy studies in the wide temperature range. Low frequency dielectric spectroscopy revealed the existence of normal ferroelectric phase (in a narrow gap), two ferri- and three antiferroelectric phases in addition to paraelectric phase and alpha subphase. The compound studied shows exceptionally strong dependence of the dielectric permittivities on measuring electric field in the temperature range of ferro- and ferrielectric phases. [ABSTRACT FROM AUTHOR]