A model calculation of the surface elastic constants of a nematic liquid crystal
- 20 December 1993
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 80 (6) , 1339-1357
- https://doi.org/10.1080/00268979300103071
Abstract
We have evaluated the bulk and surface elastic constants of a nematic liquid crystal composed of Gay-Berne particles, using a generalization of earlier theories by Poniewierski and Stecki, and Lipkin, Rice and Mohanty. The ratios between surface and bulk elastic constants have been plotted as a function of temperature and at nematic-isotropic coexistence. In particular, the sign of the K 13 (splay-bend) constant has been shown to depend sensitively on details of the intermolecular potential. Results have been contrasted with those obtained from a different theory.Keywords
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