EFFECT OF WEAK ANCHORING ON THE ELECTRIC-FIELD-INDUCED DEFORMATIONS OF NEMATIC LAYERS

Authors
DERFEL G
Citation
G. Derfel, EFFECT OF WEAK ANCHORING ON THE ELECTRIC-FIELD-INDUCED DEFORMATIONS OF NEMATIC LAYERS, Liquid crystals, 17(3), 1994, pp. 429-436
Citations number
7
Categorie Soggetti
Crystallography
Journal title
Liquid crystals → ACNP
ISSN journal
02678292
Volume
17
Issue
3
Year of publication
1994
Pages
429 - 436
Database
ISI
SICI code
0267-8292(1994)17:3<429:EOWAOT>2.0.ZU;2-7
Abstract
The stationary deformations of nematic layers with a twisted structure are analysed by means of the Taylor expansion method based on catastr ophe theory. The role of weak anchoring is investigated. Variations of the polar and azimuthal angles describing the surface director orient ation are allowed. The stability of two equilibrium states, the twiste d and the homeotropic, is studied. Several types of continuous and dis continuous transitions between them are revealed. The threshold voltag es are calculated.