Shear flow and magnetic field effects on smectic C, C*, CMand C*Mliquid crystals
作者:
S.P. A. Gill,
F.M. Leslie,
期刊:
Liquid Crystals
(Taylor Available online 1993)
卷期:
Volume 14,
issue 6
页码: 1905-1923
ISSN:0267-8292
年代: 1993
DOI:10.1080/02678299308027727
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The continuum equations of Leslieet al.[1] for smectic C, and the extension of this theory for chiral smectic C* [2], are applied to problems involving simple planar layer configurations which accommodate uniform layer thickness constraints. The chiral smectic C*Mand non-chiral smectic CM[3] are considered as either biaxial smectic A phases or antiferroelectric smectic C phases and are therefore included as interesting degenerate cases of the smectic C* and C phases, respectively. The effects of static and time dependent magnetic fields on these materials are compared with related deformations occurring in nematics [4] and cholesterics [5,6]. Their reaction to applied shears is also investigated yielding examples of flow alignment, induced secondary flows and unwinding of the chiral helix and testing the validity of enforcing a constant layer thickness.
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