NEMATIC ANCHORING TRANSITIONS ON BISTABLE SIO FILMS DRIVEN BY TEMPERATURE AND IMPURITIES

Authors
BARBERI R GIOCONDO M IOVANE M DOZOV I POLOSSAT E
Citation
R. Barberi et al., NEMATIC ANCHORING TRANSITIONS ON BISTABLE SIO FILMS DRIVEN BY TEMPERATURE AND IMPURITIES, Liquid crystals, 25(1), 1998, pp. 23-29
Citations number
16
Categorie Soggetti
Crystallography
Journal title
Liquid crystals → ACNP
ISSN journal
02678292
Volume
25
Issue
1
Year of publication
1998
Pages
23 - 29
Database
ISI
SICI code
0267-8292(1998)25:1<23:NATOBS>2.0.ZU;2-F
Abstract
The influence of temperature and impurities on the surface orientation of nematic 5CB on obliquely SiO evaporated glass plates has been stud ied. We observe on cooling a continuous anchoring transition from the planar alignment to the tilted one. The experimental data have been in terpreted by using elastic models developed by Durand and coworkers in which the surface order parameter can vary in space, close to the sur face.