Magneto-optical response of twisted nematic cells
Magneto-optical response of twisted nematic cells
We construct a theoretical model for a thermotropic ferronematic (magnetic liquid crystal colloid) in an asymmetric twisted nematic cell, subject to in-plane magnetic fields. At low colloidal concentrations, the nematic director is unchanged by strong fields, the magnetic director principally responds to its coupling to, and the suspension density peaks sharply where and are co-aligned. At higher concentrations feedback between and aligns over a significant part of the cell, and the suspension divides into a region where is parallel toH, and a region where it is not. We also make calculations of the optical properties of this cell.
liquid crystal, ferroparticle, magnetic field, twisted cell
Zadorozhnii, V.I.
7d2e7c5a-b52c-4dd1-a7fe-cd8b708cd2ab
Bashtova, K.V.
adf32905-df4c-41d8-8c0d-a1da4db13180
Reshetnyak, Victor Y
cfa84aa7-1edb-4583-95cd-36fa3058a976
Sluckin, Timothy J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6
2010
Zadorozhnii, V.I.
7d2e7c5a-b52c-4dd1-a7fe-cd8b708cd2ab
Bashtova, K.V.
adf32905-df4c-41d8-8c0d-a1da4db13180
Reshetnyak, Victor Y
cfa84aa7-1edb-4583-95cd-36fa3058a976
Sluckin, Timothy J.
8dbb6b08-7034-4ae2-aa65-6b80072202f6
Zadorozhnii, V.I., Bashtova, K.V., Reshetnyak, Victor Y and Sluckin, Timothy J.
(2010)
Magneto-optical response of twisted nematic cells.
Molecular Crystals and Liquid Crystals.
(doi:10.1080/15421406.2010.485066).
Abstract
We construct a theoretical model for a thermotropic ferronematic (magnetic liquid crystal colloid) in an asymmetric twisted nematic cell, subject to in-plane magnetic fields. At low colloidal concentrations, the nematic director is unchanged by strong fields, the magnetic director principally responds to its coupling to, and the suspension density peaks sharply where and are co-aligned. At higher concentrations feedback between and aligns over a significant part of the cell, and the suspension divides into a region where is parallel toH, and a region where it is not. We also make calculations of the optical properties of this cell.
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Published date: 2010
Additional Information:
DOI: 10.1080/15421406.2010.485066
Keywords:
liquid crystal, ferroparticle, magnetic field, twisted cell
Identifiers
Local EPrints ID: 153535
URI: http://eprints.soton.ac.uk/id/eprint/153535
ISSN: 1542-1406
PURE UUID: cf7c5f10-b6da-4e12-a0bf-d66ca49aa117
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Date deposited: 20 May 2010 10:13
Last modified: 14 Mar 2024 02:31
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Author:
V.I. Zadorozhnii
Author:
K.V. Bashtova
Author:
Victor Y Reshetnyak
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