Abstract
We report measurements of the electric-field-induced molecular tilt in a homogeneously aligned, single-component chiral liquid crystal that undergoes a direct isotropic--to--smectic-A transition. Above the transition to the bulk isotropic phase, there exists an in-plane molecular tilt that is linearly proportional to the applied field. It is suggested that surface order plays an essential role in realizing this in-plane molecular tilt and that its temperature dependence is much stronger than that for materials possessing the nematic--to--smectic-A transition. The effects of the phase-transition sequence and the number of constituent molecular species on the nature of the surface ordering are also discussed.
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