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Stability and metastability in nematic glasses: a computational study

Stability and metastability in nematic glasses: a computational study
Stability and metastability in nematic glasses: a computational study
The influence of randomly distributed impurities on liquid crystal (LC) orientational ordering is studied using a simple Lebwohl-Lasher type lattice model in two (d=2) and three (d=3) dimensions. The impurities of concentration p impose a random anisotropy field-type of disorder of strength w to the LC nematic phase. Orientational correlations can be well presented by a single coherence length for a weak enough w. We show that the Imry-Ma scaling prediction w holds true if the LC configuration is initially quenched from the isotropic phase. For other initial configurations the scaling is in general not obeyed
liquid crystals, metastability, symmetry breaking, weak disorder, irmy-a scaling
9789048134069
109-124
Springer
Ambrozic, Milan
8dbb6b08-7034-4ae2-aa65-6b80072202f6
Sluckin, Timothy J.
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Cvetko, Matej
19a649fd-a654-4e64-b6e5-630e327dc943
Rzoska, Sylwester
Drozd-Rzoska, Aleksandra
Mazur, Victor
Ambrozic, Milan
8dbb6b08-7034-4ae2-aa65-6b80072202f6
Sluckin, Timothy J.
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Cvetko, Matej
19a649fd-a654-4e64-b6e5-630e327dc943
Rzoska, Sylwester
Drozd-Rzoska, Aleksandra
Mazur, Victor

Ambrozic, Milan, Sluckin, Timothy J. and Cvetko, Matej (2009) Stability and metastability in nematic glasses: a computational study. In, Rzoska, Sylwester, Drozd-Rzoska, Aleksandra and Mazur, Victor (eds.) Metastable Systems Under Pressure. (NATO Science for Peace and Security Series A: Chemistry and Biology, , (doi:10.1007/978-90-481-3408-3_8)) NATO Advanced Research Workshop on Metastable Systems under Pressure: Platform for New Technologies and Environmental Applications Dordrecht, The Netherlands. Springer, pp. 109-124. (doi:10.1007/978-90-481-3408-3_8).

Record type: Book Section

Abstract

The influence of randomly distributed impurities on liquid crystal (LC) orientational ordering is studied using a simple Lebwohl-Lasher type lattice model in two (d=2) and three (d=3) dimensions. The impurities of concentration p impose a random anisotropy field-type of disorder of strength w to the LC nematic phase. Orientational correlations can be well presented by a single coherence length for a weak enough w. We show that the Imry-Ma scaling prediction w holds true if the LC configuration is initially quenched from the isotropic phase. For other initial configurations the scaling is in general not obeyed

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More information

Published date: 2009
Venue - Dates: NATO Advanced Research Workshop on Metastable Systems under Pressure: Platform for New Technologies and Environmental Applications, 2008-10-04 - 2008-10-08
Keywords: liquid crystals, metastability, symmetry breaking, weak disorder, irmy-a scaling

Identifiers

Local EPrints ID: 79827
URI: https://eprints.soton.ac.uk/id/eprint/79827
ISBN: 9789048134069
PURE UUID: b927bb1d-2461-4599-b24a-ca59a5d41a99
ORCID for Milan Ambrozic: ORCID iD orcid.org/0000-0002-9163-0061
ORCID for Timothy J. Sluckin: ORCID iD orcid.org/0000-0003-3236-2535

Catalogue record

Date deposited: 22 Mar 2010
Last modified: 06 Jun 2018 13:20

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