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Magnetic field induced alignment of the director in a smectic A phase: surface effects

Magnetic field induced alignment of the director in a smectic A phase: surface effects
Magnetic field induced alignment of the director in a smectic A phase: surface effects
Deuterium NMR studies of the alignment by a magnetic field of the director in the smectic A phase of 4-octyl-4'-cyanobiphenyl have shown this to be a complex process. To explore the influence of the interaction between the smectic A phase and the surface of its container on the pathways available for director alignment we have investigated a droplet of this phase suspended in glycerol. The field induced alignment of the director in the droplet is found to be dramatically different, both quantitatively and qualitatively, to that found for the smectic A phase confined to a glass tube.
nematic phase, reorientation
0009-2614
255-261
Emsley, J. W.
1196f183-5b1c-4948-8f59-e67c0710406e
Luckhurst, G. R.
923cc3f5-cc34-4c4c-8508-1fe3b83aac16
Pedrielli, P.
8ead7da8-0bc8-4fa1-8e95-5d6ee6eebb9e
Emsley, J. W.
1196f183-5b1c-4948-8f59-e67c0710406e
Luckhurst, G. R.
923cc3f5-cc34-4c4c-8508-1fe3b83aac16
Pedrielli, P.
8ead7da8-0bc8-4fa1-8e95-5d6ee6eebb9e

Emsley, J. W., Luckhurst, G. R. and Pedrielli, P. (2000) Magnetic field induced alignment of the director in a smectic A phase: surface effects. Chemical Physics Letters, 320 (3-4), 255-261. (doi:10.1016/S0009-2614(00)00236-0).

Record type: Article

Abstract

Deuterium NMR studies of the alignment by a magnetic field of the director in the smectic A phase of 4-octyl-4'-cyanobiphenyl have shown this to be a complex process. To explore the influence of the interaction between the smectic A phase and the surface of its container on the pathways available for director alignment we have investigated a droplet of this phase suspended in glycerol. The field induced alignment of the director in the droplet is found to be dramatically different, both quantitatively and qualitatively, to that found for the smectic A phase confined to a glass tube.

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More information

Published date: 7 April 2000
Keywords: nematic phase, reorientation

Identifiers

Local EPrints ID: 18978
URI: http://eprints.soton.ac.uk/id/eprint/18978
ISSN: 0009-2614
PURE UUID: c7cdfc47-d749-4f30-9b37-c3dadd23bc20

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Date deposited: 21 Dec 2005
Last modified: 15 Mar 2024 06:09

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Contributors

Author: J. W. Emsley
Author: G. R. Luckhurst
Author: P. Pedrielli

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