Volume 103, Number 2, July 2013
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||05 August 2013|
Yield torque sliding anchoring in nematic liquid crystals
1 Université de Lyon, Ecole Normale Supérieure de Lyon, Laboratoire de Physique, UMR 5672 of the CNRS 46 Allée d'Italie, F-69364 Lyon Cedex 07, France, EU
2 Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand - BP 10448, F-63000 Clermont-Ferrand, France, EU
3 CNRS, UMR 6296, ICCF - F-63171 Aubière, France, EU
Received: 25 April 2013
Accepted: 8 July 2013
We study the behavior under rotating magnetic field of a nematic liquid crystal sandwiched between two parallel glass plates treated for partly sliding planar degenerate anchoring. This behavior is explained within a mean-field model taking into account the volume elasticity and the random planar anchoring of the molecules on the surfaces.
PACS: 61.30.Hn – Surface phenomena: alignment, anchoring, anchoring transitions, surface-induced layering, surface-induced ordering, wetting, prewetting transitions, and wetting transitions / 83.80.Xz – Liquid crystals: nematic, cholesteric, smectic, discotic, etc.
© EPLA, 2013
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