PERIODIC DISTORTIONS IN LYOTROPIC NEMATIC CALAMITIC LIQUID-CRYSTALS

Citation
M. Simoes et al., PERIODIC DISTORTIONS IN LYOTROPIC NEMATIC CALAMITIC LIQUID-CRYSTALS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 54(4), 1996, pp. 3765-3770
Citations number
15
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
ISSN journal
1063651X
Volume
54
Issue
4
Year of publication
1996
Part
A
Pages
3765 - 3770
Database
ISI
SICI code
1063-651X(1996)54:4<3765:PDILNC>2.0.ZU;2-8
Abstract
A theoretical tool to determine the dependence of the wavelength of pe riodic structures on the applied magnetic field in lyotropic liquid cr ystals in the nematic calamitic phase is proposed. It is assumed that the periodic structure experimentally found can be represented by a se quence of walls. Our calculations indicate that in order to describe t he measured behavior of the system above the Fredericks threshold the interaction between these walls must be taken into account. The streng th of these interactions and the ratio between the bend and twist elas tic constants are also determined.