Dielectric and pyroelectric studies of an antiferroelectric liquid crystal

Citation
Nm. Shtykov et al., Dielectric and pyroelectric studies of an antiferroelectric liquid crystal, CRYSTALLO R, 45(4), 2000, pp. 682-686
Citations number
21
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
45
Issue
4
Year of publication
2000
Pages
682 - 686
Database
ISI
SICI code
1063-7745(200007/08)45:4<682:DAPSOA>2.0.ZU;2-Y
Abstract
Polymorphism and polar properties of an antiferroelectric (R)-2-methylhepty loxycarbonylphenyl-4-[(4-decyloxy-3-fluoro)benzoyloxy]benzoate liquid cryst al are studied. The phases are identified, and the phase transition points are determined. Dielectric constant, dielectric losses, and pyroelectric pr operties are studied for the orthogonal smectic SmA and tilted smectic SmCa lpha*, SmC*, SmCgamma*, and SmCA* phases. The temperature dependence of spo ntaneous polarization is measured by the repolarization current technique a nd integration of the pyroelectric constant. (C) 2000 MAIK "Nauka/Interperi odica".