Dielectric Permittivity at the Nematic-Smectic A Phase Transition
- 1 January 1986
- journal article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 135 (1-2) , 49-64
- https://doi.org/10.1080/00268948608084805
Abstract
The behaviour of the dielectric permittivity at the N-SA phase transition has been studied. An empirical expression has been derived for a correction factor which accounts for the deviation of experimental data from the Maier-Meier equation. This expression enables orientational order parameters to be determined. The model has been applied to two homologous series and to two binary mixtures with high positive dielectric anisotropy.Keywords
This publication has 11 references indexed in Scilit:
- Dielectric Permittivity on Commensurate and Incommensurate Smectic Phases?Molecular Crystals and Liquid Crystals, 1983
- Frustrated Spin-Gas Model for Doubly Reentrant Liquid CrystalsPhysical Review Letters, 1981
- Some physical properties of re-entrant nematicsPublished by Elsevier ,1981
- Ordnungsgradbestimmung in der nematischen und smektischen A‐Phase des 4‐n‐Octyloxybenzoeslure‐4′‐nitrophenylesters mit Hilfe optischer MessungenZeitschrift für Chemie, 1978
- The Dielectric and Optical Properties of the Homologous Series of Cyano-Alkyl-Biphenyl Liquid CrystalsMolecular Crystals and Liquid Crystals, 1978
- Influence of smectic order on the static dielectric permittivity of liquid crystalsThe Journal of Chemical Physics, 1974
- Extension of the Kirkwood-Fröhlich theory of the static dielectric permittivity to anisotropic liquidsPhysica, 1974
- Dielectric Properties of Di--Heptyl Azoxybenzene in the Nematic and in the Smectic-PhasesPhysical Review Letters, 1974
- Simple Molecular Model for the SmecticPhase of Liquid CrystalsPhysical Review A, 1971
- The Dielectric Polarization of Polar LiquidsThe Journal of Chemical Physics, 1939