2013•Unpublished venueRequires access

Influence of Smectic Ordering on the Pretransitional Light-Scattering Behaviour in the Isotropic Phase of Liquid Crystals

Mikhail A. Anisimov, V. I. Labko, G. L. Nikolaenko, I. K. Yudin

Abstract

Accurate light-scattering measurements have been performed in the isotropic phase of liquid crystals near both isotropic-nematic and isotropic-smectic A phase transitions. Everywhere deviations from the predictions of the Landau-de Gennes theory were found. Moreover these deviations are definitely depending upon the existence of the smectic phase and are the most stressing near the isotropic-nematic-smectic A triple point.

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Key concepts: Liquid crystal, Isotropy, Phase (matter), Condensed matter physics, Scattering, Phase transition, Materials science, Optics