The Physical Properties of A Series of Antiferroelectric Hetrocyclic Esters

A series of highly chiral hetrocyclic esters have been studied. The effect that the choice of hetroatom has on the linearity of the molecules and hence the mesomophism of the materials has been investigated. Measurements of the spontaneous polarisation, tilt angle, current response time and rotation...

Full description

Saved in:
Bibliographic Details
Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 1997-09, Vol.303 (1), p.145-152
Main Authors: Mills, Jo, Miller, Richard, Gleeson, Helen, Seed, Alex, Hird, Mike, Styring, Peter
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Liquids and liquid crystals
Liquids, emulsions, and suspensions
liquid crystals
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A series of highly chiral hetrocyclic esters have been studied. The effect that the choice of hetroatom has on the linearity of the molecules and hence the mesomophism of the materials has been investigated. Measurements of the spontaneous polarisation, tilt angle, current response time and rotational viscosities of the materials are reported. At 30°C below the transition from the SmA phase all members of the series show a Ps of ∼100nCcm −2 and a high tilt angle of about 30°. These physical measurements confirm the presence of a higher order antiferroelectric phase in the selenophene derivative in this series.
ISSN:1058-725X
DOI:10.1080/10587259708039418