Homogeneous and heterogeneous switching in antiferroelectric liquid crystals

Beccherelli, R., Mottram, N.J. and Elston, S.J. (2000) Homogeneous and heterogeneous switching in antiferroelectric liquid crystals. European Physical Journal: Applied Physics, 9(3), pp. 247-252. (doi: 10.1051/epjap:2000111)

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An experimental investigation of hysteretic switching in antiferroelectric liquid crystals has been carried out. It is shown that in switching from the antiferroelectric state to the ferroelectric state there exists both a heterogeneous process involving the growth of finger-like domains and a homogeneous process in which the whole cell uniformly switches. At high field slew rates the homogeneous process dominates. However, ferroelectric to antiferroelectric switching involves only a heterogeneous process. A simple analytic model is then used to describe the experimental results and thus understand the competition between homogeneous and heterogeneous switching.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Mottram, Professor Nigel
Authors: Beccherelli, R., Mottram, N.J., and Elston, S.J.
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:European Physical Journal: Applied Physics
Publisher:EDP Open
ISSN (Online):1286-0050
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