Order parameter of a nematic liquid crystal on a rough surface
- 1 February 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 41 (4) , 2207-2210
- https://doi.org/10.1103/physreva.41.2207
Abstract
We measure the surface order parameter at the interface between the nematic liquid crystal p-methoxy-benzylidine-p-n-butyl-aniline and a rough glass plate. Roughness is induced by oblique evaporation of SiO. We observe a critical decrease of when the surface roughness increases, just above the transition from planar to oblique orientation. This experiment supports the ordoelectric model to explain the oblique orientation of the nematic liquid crystal.
Keywords
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