| Issue |
J. Phys. II France
Volume 3, Number 8, August 1993
|
|
|---|---|---|
| Page(s) | 1247 - 1253 | |
| DOI | https://doi.org/10.1051/jp2:1993195 | |
DOI: 10.1051/jp2:1993195
J. Phys. II France 3 (1993) 1247-1253
Laboratoire de Physique des Solides, Bât. 510, Université Paris-Sud, 91405 Orsay Cedex, France
61.30 - 68.10
© Les Editions de Physique 1993
J. Phys. II France 3 (1993) 1247-1253
Temperature dependence of surface orientation of nematic liquid crystals
A. L. Alexe-Ionescu, G. Barbero and G. DurandLaboratoire de Physique des Solides, Bât. 510, Université Paris-Sud, 91405 Orsay Cedex, France
(Received 25 February 1993, accepted 7 May 1993)
Abstract
The mixed splay bend curvature elastic constant
K13 of nematics is shown to be proportional to
S, the modulus of the quadrupolar orientational parmeter. One consequence is presented on the orientation of a nematic on a
solid substrate : for an infinitely strong anchoring at an arbitrary angle, the surface energy contribution from
K13 gives an apparent surface orientation which depends on the temperature.
61.30 - 68.10
© Les Editions de Physique 1993