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Dynamics of Dislocations in Smectic A Liquid Crystals Doped with Nanoparticles

Laboratoire de Physique, University Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique, F-69342 Lyon, France
Crystals 2019, 9(8), 400; https://doi.org/10.3390/cryst9080400
Received: 25 July 2019 / Revised: 30 July 2019 / Accepted: 31 July 2019 / Published: 2 August 2019
(This article belongs to the Special Issue Pattern Formation and Defects in Liquid Crystals)
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Abstract

Edge dislocations are linear defects that locally break the positional order of the layers in smectic A liquid crystals. As in usual solids, these defects play a central role for explaining the plastic properties of the smectic A phase. This work focuses on the dynamical properties of dislocations in bulk samples prepared between two glass plates and in free-standing films. The emphasis will be put on the measurement of the mobility of edge dislocations in liquid crystals either pure or doped with nanoparticles. The experimental results will be compared to the existing models. View Full-Text
Keywords: liquid crystal; smectic A; dislocation; plasticity; nanoparticles; hardening liquid crystal; smectic A; dislocation; plasticity; nanoparticles; hardening
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Oswald, P. Dynamics of Dislocations in Smectic A Liquid Crystals Doped with Nanoparticles. Crystals 2019, 9, 400.

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