Journal ArticleDOI
Pretransitional Phenomena in the Isotropic Phase of a Nematic Liquid Crystal
T. W. Stinson,J. D. Litster +1 more
TLDR
In this article, the authors have observed a divergence of the magnetic birefringence, and a critical increase and slowing of the fluctuations in order in the isotropic phase of a nematic liquid crystal.Abstract:
We have observed a divergence of the magnetic birefringence, and a critical increase and slowing of the fluctuations in order in the isotropic phase of a nematic liquid crystal. Our results are quantitatively described by a mean-field model except for a critical region close to the ordering temperature where the fluctuations are so large that the meanfield approximation fails.read more
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Reference EntryDOI
Electrical, Magnetic and Mechanical Fields, and Bent‐Core Liquid Crystals
TL;DR: In this paper, the Cotton-Mouton effect was used for quincke rotation in liquid crystals, and the effect was shown to be effective in the case of bent-core liquid crystals.
Journal ArticleDOI
Effect of local molecular ordering on the temperature behavior of the relaxation time of order-parameter fluctuations in the isotropic phase of PAA nematic liquid crystal
TL;DR: The behavior of the relaxation time of order-parameter fluctuations in the isotropic phase of PAA nematic liquid crystal was investigated on the basis of the spectra of depolarized (inelastic) light scattering in a wide temperature range including the immediate vicinity to the temperature of the nematic phase transition.
Journal ArticleDOI
Diamagnetic “Curie-Weiss law” and molecular interactions in organic liquids
Akio Yamagishi,Muneyuki Date +1 more
TL;DR: In this article, a diamagnetic "Curie-Weiss law" was found in various organic liquids and their mixtures by using the magnetic birefringence effect in pulsed magnetic fields up to 40 T.
Journal ArticleDOI
Light-scattering studies of molecular association in mesogenic systems
Mark R. Wilson,David A. Dunmur +1 more
TL;DR: In this article, depolarized light scattering measurements on solutions of S-(+)-4-(2′-methylbutyl)-phenyl-4′-octylbiphenyl 4-carboxylate (CE8) and (±)-4(2′)-methyl butyl)phenyl -4′ -octyl-methyltimethyl biphenyl in carbon tetrachloride were performed to determine absolute values for the polarizability anisotropies.
Journal ArticleDOI
Nonresonant third-order susceptibility measurements in the nematic liquid crystal K18
John Philip,T. A. Prasada Rao +1 more
TL;DR: In this article, a large nonresonant third-order nonlinear susceptibility, X(3) (-ω; ω, 0, 0) was observed in the isotropic phase of a nematic liquid crystal 4′-n-hexyl-4-cyanobiphenyl (K18).