Journal
MATERIALS
Volume 2, Issue 2, Pages 499-513Publisher
MDPI
DOI: 10.3390/ma2020499
Keywords
Defects; Focal conic domains; Liquid crystals; Smectic A; Apollonius tiling, Dupin cyclides
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We investigate two different textures of smectic A liquid crystals. These textures are particularly symmetric when they are observed at crossed polars optical microscopy. For both textures, a model has been made in order to examine the link between the defective macroscopic texture and the microscopic disposition of the layers. We present in particular in the case of some hexagonal tiling of circles (similar to the Apollonius tiling) some numeric simulation in order to visualize the smectic layers. We discuss of the nature of the smectic layers, which permit to assure their continuity from one focal conic domain to another adjacent one.
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