Modelling smectics in confined geometries

McKay, G. (2004) Modelling smectics in confined geometries. Journal of Non-Newtonian Fluid Mechanics, 119 (1-3). pp. 115-122. ISSN 0377-0257 (http://dx.doi.org/10.1016/j.jnnfm.2003.05.001)

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Abstract

We examine a continuum theory for smectic liquid crystals which allows some variation in the smectic layer spacing as well as the director tilt. The theory can model configurations beyond the scope of a constant director tilt approach. Two applications of the continuum description are discussed. The first models equilibrium configurations of a planar smectic C cell, where a variation in layer spacing occurs due to homeotropic type ordering on the boundary plates. Secondly, we employ the theory to examine the bookshelf and chevron structures which can form as a liquid crystal is cooled into the smectic phases.