Molecular model for de Vries type smectic A - smectic C phase transition in liquid crystals
M. V. Gorkunov, M. A. Osipov, F. Giesselmann, T. J. Sluckin, J. P. F. Lagerwall
Abstract
We develop a theory of Smectic A - Smectic C phase transition with anomalously weak smectic layer contraction. We construct a phenomenological description of this transition by generalizing the Chen-Lubensky model. Using a mean-field molecular model, we demonstrate that a relatively simple interaction potential suffices to describe the transition. The theoretical results are in excellent agreement with experimental data.
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