Volume 53, Number 6, March 2001
|Page(s)||735 - 741|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Pseudo-Casimir force in confined nematic polymers
J. Stefan Institute, University of Ljubljana -
Jamova 39, 1000 Ljubljana, Slovenia
2 Department of Physics, Faculty of Mathemathics and Physics, University of Ljubljana Jadranska 19, 1000 Ljubljana, Slovenia
Corresponding author: firstname.lastname@example.org
Accepted: 29 December 2000
We investigate the pseudo-Casimir force in a slab of material composed of nematically ordered long polymers. We write the total mesoscopic energy together with the constraint connecting the local density and director fluctuations and evaluate the corresponding fluctuation free energy by standard methods. This leads to a pseudo-Casimir force of a different type than in the case of standard, short-molecule nematics. We investigate its separation dependence and its magnitude and explicitly derive the relevant limiting cases.
PACS: 61.30.-v – Liquid crystals / 61.41.+e – Polymers, elastomers and plastics
© EDP Sciences, 2001
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