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Chirality effects in thermotropic and lyotropic nematic liquid crystals under confined geometries

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Chirality effects in thermotropic and lyotropic nematic liquid crystals under confined geometries (English shop)

Clarissa Dietrich (Author)

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ISBN-13 (Hard Copy) 9783736971288
ISBN-13 (eBook) 9783736961289
Language English
Page Number 190
Lamination of Cover glossy
Edition 1.
Publication Place Göttingen
Place of Dissertation Stuttgart
Publication Date 2019-12-09
General Categorization Dissertation
Departments Physics of condensed matter (including physics of solid bodies, optics)
Physical chemistry
Keywords Natural Science, Physics, Liquid Crystals, Nematic Liquid Crystals, Lyotropic Liquid Crystals, Thermotropic Liquid Crystals, Chirality Effects, Confined Geometries, Chirality, Spontaneous Mirror Symmetry Breaking, Chiral Induction, Handedness, Helices, Defects, Topology, Elasticity, Viscosity, Droplets, Light Scattering, Anisotropic Surfaces, Naturwissenschaft, Physik, Flüssigkristalle, Nematische Flüssigkristalle, Lyotrope Flüssigkristalle, Thermotrope Flüssigkristalle, Chiralitätseffekte, Beschränkte Geometrien, Chiralität, Spontane Spiegelsymmetriebrechung, Chirale Induktion, Händigkeit, Helix, Defekte, Topologie, Elastizität, Viskosität, Tropfen, Lichtstreuung, Anisotrope Oberflächen
URL to External Homepage https://www.ipc.uni-stuttgart.de/giesselmann/
Description

Chirality is a phenomenon in nature that appears across all disciplines of natural science, from biology to mathematics. The spontaneous formation of chiral structures in a system of achiral components is known as spontaneous mirror symmetry breaking and is by itself of fundamental interest leading also towards the question of the origin of homochirality in nature in general. In this work, we show that by means of the topology imposed by the confining geometry and by interfacial boundary conditions – in combination with the physical properties of a liquid crystal – spontaneous mirror symmetry broken structures can be obtained. They are analyzed, inter alia, with respect to the types of geometrical confinements used, e.g. how the confinement amplifies, induces, and influences the detection of chirality effects in order to facilitate the measurement of tiny amounts of chiral additives qualitatively and quantitatively.