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Title: Topological defects in cholesteric liquid crystals induced by monolayer domains with orientational chirality
Author: Petit Garrido, Núria
Trivedi, Rahul P.
Sagués i Mestre, Francesc
Ignés i Mullol, Jordi
Smalyukh, I.
Keywords: Cristalls líquids
Membranes (Biologia)
Liquid crystals
Membranes (Biology)
Issue Date: 28-May-2014
Publisher: Royal Society of Chemistry
Abstract: Unless stabilized by colloids or confinement with well-defined boundary conditions, defects in liquid crystals remain elusive short-lived objects that tend to disappear with time to minimize the medium's free energy. In this work we use multimodal three-dimensional imaging to visualize cholesteric director structures to show that self-assembled chiral molecular monolayer domains can stabilize topologically constrained defect configurations when in contact with a cholesteric liquid crystal. The cholesteric liquid crystal, having features of both coarse-grained lamellar and nematic liquid crystal with chiral symmetry breaking, allows us to explore the interplay of chirality and implications of layering on the formed defects and director configurations.
Note: Versió postprint del document publicat a:
It is part of: Soft Matter, 2014, vol. 10, num. 41, p. 8163-8170
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ISSN: 1744-683X
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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