Focal Conic Stacking in Smectic A Liquid Crystals: Smectic Flower and Apollonius Tiling

Materials

Claire Meyer¹  Loic Le Cunff²  Malika Belloul² 

[1]Laboratoire de Physique des Systèmes Complexes, Université de Picardie Jules Verne, 33 rue Saint-Leu, 80039 Amiens, France

关键词: Defects;    Focal conic domains;    Liquid crystals;    Smectic A;    Apollonius tiling;    Dupin cyclides.;   

DOI  :  10.3390/ma2020499

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.