| Numéro |
J. Phys. II France
Volume 3, Numéro 2, February 1993
|
|
|---|---|---|
| Page(s) | 177 - 182 | |
| DOI | https://doi.org/10.1051/jp2:1993119 | |
DOI: 10.1051/jp2:1993119
J. Phys. II France 3 (1993) 177-182
Institute of Physical Chemistry, Polish Academy of Sciences, Department III, Kasprzaka 44/52, 01-224 Warsaw, Poland
61.30-61.30C-46.30C
© Les Editions de Physique 1993
J. Phys. II France 3 (1993) 177-182
On the elastic free energy for smectic-A liquid crystals
Robert Holyst and Andrzej PoniewierskiInstitute of Physical Chemistry, Polish Academy of Sciences, Department III, Kasprzaka 44/52, 01-224 Warsaw, Poland
(Received 20 July 1992, revised 19 November 1992, accepted 9 December 1992)
Abstract
We thoroughly discuss the layer deformations in smectic-A liquid crystals. The invariant elastic free energy is presented
in terms of the derivatives of the vector field normal to layers and the change of the distance between the layers. We compare
our results with the previous works of de Gennes and of Grinstein and Pelcovits. It is pointed out that anharmonic terms in
the elastic free energy might be responsible for the change of the average layer spacing, layer spacing profile and in particular
for the tilt profiles in finite smectic systems.
61.30-61.30C-46.30C
© Les Editions de Physique 1993