| Numéro |
J. Phys. II France
Volume 3, Numéro 9, September 1993
|
|
|---|---|---|
| Page(s) | 1397 - 1409 | |
| DOI | https://doi.org/10.1051/jp2:1993200 | |
DOI: 10.1051/jp2:1993200
J. Phys. II France 3 (1993) 1397-1409
1 FB7, Physik, Universität Essen, D 45117 Essen, Germany
2 Theoretische Physik III, Universität Bayreuth, Postfach 10 12 51, D 95440 Bayreuth, Germany
61.30 - 61.40K - 77.60 - 64.70M
© Les Editions de Physique 1993
J. Phys. II France 3 (1993) 1397-1409
Piezoelectricity in cholesteric liquid crystalline structures
Harald Pleiner1 and Helmut R. Brand2, 11 FB7, Physik, Universität Essen, D 45117 Essen, Germany
2 Theoretische Physik III, Universität Bayreuth, Postfach 10 12 51, D 95440 Bayreuth, Germany
(Received 25 January 1993, revised 28 April 1993, accepted 2 June 1993)
Abstract
Using symmetry arguments we discuss the various possible helical structures that can show a longitudinal piezoelectric effect.
Due to the recent experimental verification of such an effect in some elastomeric cholesteric liquid crystals, we propose
that what is called cholosterics could actually represent different helical structures, which can be more complicated than
the conventional (i.e. simple screw) model.
61.30 - 61.40K - 77.60 - 64.70M
© Les Editions de Physique 1993