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Layer distortions induced by a magnetic field in planar samples of smectic C liquid crystals

Stewart, I.W. (2003) Layer distortions induced by a magnetic field in planar samples of smectic C liquid crystals. Liquid Crystals, 30 (8). pp. 909-920. ISSN 0267-8292

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Abstract

This article derives theoretical results for the onset of the Helfrich-Hurault transition in smectic C liquid crystals induced by a magnetic field applied parallel to the smectic layers. A suitable quadratic energy in terms of the smectic layer displacement u is derived from the nonlinear version of the smectic C energy. This energy is minimized via averaging to enable the calculation of a critical field strength Hc for the onset of layer distortions. Comparisons are made with known results for the corresponding geometry in the smectic A case. An estimate for the value of the smectic C elastic constant A12 can also be made by considering characteristic length scales.

Item type: Article
ID code: 2140
Keywords: Helfrich-Hurault transition, smectics, physics, liquid crystals, Mathematics, Physics, Materials Science(all), Chemistry(all), Condensed Matter Physics
Subjects: Science > Mathematics
Science > Physics
Department: Faculty of Science > Mathematics and Statistics
Related URLs:
Depositing user: Strathprints Administrator
Date Deposited: 24 Nov 2006
Last modified: 04 Sep 2014 11:46
URI: http://strathprints.strath.ac.uk/id/eprint/2140

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