Orientational transition in nematic liquid crystal with hybrid alignment under oscillatory shear

Authors
Khazimullin, MV Borzsonyi, T Krekhov, AP Lebedev, YA
Citation
Mv. Khazimullin et al., Orientational transition in nematic liquid crystal with hybrid alignment under oscillatory shear, MOL CRYST A, 329, 1999, pp. 859-866
Citations number
14
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
ISSN journal
1058725X → ACNP
Volume
329
Year of publication
1999
Part
2
Pages
859 - 866
Database
ISI
SICI code
1058-725X(1999)329:<859:OTINLC>2.0.ZU;2-H
Abstract
The optical response of the nematic liquid crystal confined between plates with strong homeotropic and weak planar anchoring (hybrid geometry) under t he oscillatory shear has been investigated. Critical shear amplitude above that the director deviates from the planar orientation at the substrate wit h weak anchoring was found and the dependence of the tilt angle on the disp lacement amplitude was obtained. The anchoring strength and surface viscosi ty for the SiO-evaporated substrate was estimated.