Mottram, N. J. and Elston, S. J. (1999) Order parameter theory for switching in antiferroelectric liquid crystals. Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, 330(1), pp. 557-564. (doi: 10.1080/10587259908025634)
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Abstract
In order to model the field induced switching of AFLC materials we have employed a bilayer order parameter theory which includes changes in the distribution of molecules around the smectic cone. The free energy is a function of the azimuthal director angle and the molecular order about this director in the odd and even layers. By minimizing the free energy the effective optic axis may be calculated as a function of applied voltage. This theory is able to produce not only hysteretic tristate switching typical of AFLC materials but also the pre-transitional electroclinic-like behaviour at low field strengths and the frequency dependence of the double hysteresis loop.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Mottram, Professor Nigel |
| Authors: | Mottram, N. J., and Elston, S. J. |
| College/School: | College of Science and Engineering > School of Mathematics and Statistics > Mathematics |
| Journal Name: | Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals |
| Publisher: | Taylor & Francis |
| ISSN: | 1058-725X |
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