Journal ArticleDOI
Phenomenology of short-range-order effects in the isotropic phase of nematic materials
TLDR
In this article, the magnetic birefringence, the intensity and the width in frequency of the Rayleigh scattering, and the flow bireringence are discussed in terms of a small number of phenomenological parameters.About:
This article is published in Physics Letters A.The article was published on 1969-12-15. It has received 301 citations till now. The article focuses on the topics: Flow birefringence & Birefringence.read more
Citations
More filters
Journal ArticleDOI
Coherence Length in the Isotropic Phase of a Room-Temperature Nematic Liquid Crystal
Benjamin Chu,C. S. Bak,F. L. Lin +2 more
TL;DR: In this paper, the polarized and depolarized light intensity by fluctuations of the order parameter $Q$ near the isotropic-nematic phase transition of para-methoxybenzylidene para-$n$-butylaniline has been measured as a function of the scattering angle over a range of temperatures above the phase-transition temperature.
Journal ArticleDOI
Similarities and differences in the nonlinear flow behavior of simple and of molecular liquids
TL;DR: In this paper, a method for the calculation of viscosity coefficients describing non-Newtonian flow behavior and the normal pressure differences in a plane Couette symmetry is presented and some remarks on the connection with the linear viscoelasticity are made.
Journal ArticleDOI
Dynamic defect morphology and hydrodynamics of sheared nematic polymers in two space dimensions
TL;DR: Klein et al. as discussed by the authors simulate the Larson-Mead experiments on roll-cell formation and breakup, and reveal the spawning of an array of oblate defect core domains, which then deform, propagate, collide, merge, and split in a dynamic process that numerically continues ad infinitum.
Journal ArticleDOI
Landau theory of the isotropic-nematic critical point
TL;DR: For biphenyl compounds having a dielectric anisotropy ϵ a ≈ 10, it is argued that the critical point should occur at E c ≈10 2 kV/cm, which is experimentally accessible.
Journal ArticleDOI
Dynamical numerical model for nematic order reconstruction.
TL;DR: A finite element method is used to implement the Q dynamics by a variational principle and it is shown that a uniaxial nematic configuration can evolve passing through transient biaXial states.
References
More filters
Journal ArticleDOI
Nuclear relaxation in a nematic liquid crystal
TL;DR: In this paper, the authors estimate the contributions to T1 and T2 in a nematic liquid crystal arising from the fluctuations in the orientational order, which results in relaxation times of the order of one second which is typical of ordinary liquids.
Journal ArticleDOI
Spin Relaxation and Self-Diffusion in Liquid Crystals
Journal ArticleDOI
Quasielastic Rayleigh Scattering in Nematic Liquid Crystals
TL;DR: Using a light-beat laser spectrometer, the authors observed the relaxation of the thermally excited fluctuations of anisotropy in the nematic phase of $p\ensuremath{-}\mathrm{azoxyanisole}$.