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Undulations of smectic A layers in achiral liquid crystals manifested as stripe textures by Podoliak, Natalia; Salamon, Peter; Lejček, Lubor; Kužel, Petr; Novotná, Vladimíra is a scholarly article available to read on EtoBox.

What is Undulations of smectic A layers in achiral liquid crystals manifested as stripe textures about?

Self-assembly of organic molecules represents a fascinating playground to create various liquid crystalline (LC) nanostructures. In this work, we study layer undulations on micrometer scale in smectic A phases for achiral compounds, experimentally demonstrated as regular stripe patterns induced by thermal treatment. Undulations including their anharmonic properties are evaluated by means of polarimetric imaging and light diffraction experiments in cells with various thicknesses. The key role in stripe formation is played by high negative values of the thermal expansion coefficient.

Author

Podoliak, Natalia; Salamon, Peter; Lejček, Lubor; Kužel, Petr; Novotná, Vladimíra

Published

2023

Language

EN