Laser and Electric Field Induced Birefringence Studies on the Cyanobiphenyl Homologues
- 1 October 1978
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 49 (3) , 67-74
- https://doi.org/10.1080/00268947808070330
Abstract
The optical and d.c. pulsed field Kerr Effects have been used to study the pretransitional behaviour in the isotropic phase for the alkyl cyano-biphenyl homologues (CN φ.φ CnH2n+1) for n = 5–8. From the dynamic and static measurements both the relaxation time (τ) and the Kerr Constant B have been found to be proportional to (T-T*)−1. These results are interpreted in terms of the Landau - de Gennes model and the characteristic parameters of this formalism have been given. The results are discussed in terms of the changing chemical structure.Keywords
This publication has 13 references indexed in Scilit:
- The Laser and Electrical Kerr Effect in Pentyloxy - CyanobiphenylMolecular Crystals and Liquid Crystals, 1978
- The Dielectric and Optical Properties of the Homologous Series of Cyano-Alkyl-Biphenyl Liquid CrystalsMolecular Crystals and Liquid Crystals, 1978
- Elasticity and Orientational Order in Some 4′-n-Alkyl-4-Cyanobiphenyls: Part IIMolecular Crystals and Liquid Crystals, 1977
- The free energy as a function of the order parameter in nematic liquid crystalsPhysics Letters A, 1976
- Elastic and Optical Properties of Some 4′-n-Alkyl-4-CyanobiphenylsMolecular Crystals and Liquid Crystals, 1976
- Validity of the Landau Approximation in the Nematic PhaseMolecular Crystals and Liquid Crystals, 1976
- Optical-Field-Induced Ordering in the Isotropic Phase of a Nematic Liquid CrystalPhysical Review Letters, 1973
- New family of nematic liquid crystals for displaysElectronics Letters, 1973
- Electro-optic performance of a new room-temperature nematic liquid crystalElectronics Letters, 1973
- Short Range Order Effects in the Isotropic Phase of Nematics and CholestericsMolecular Crystals and Liquid Crystals, 1971