Ladak, Sam ORCID: https://orcid.org/0000-0002-0275-0927, Davidson, A., Brown, C. V. and Mottram, N. J. 2009. Sidewall control of static azimuthal bistable nematic alignment states. Journal of Physics D: Applied Physics 42 (8) , 085114. 10.1088/0022-3727/42/8/085114 |
Abstract
Stable azimuthal alignment states have been created in the plane of a homogeneous layer of nematic liquid crystal by the action of one or more sawtooth sidewalls. The alignment states in devices with two sawtooth sidewall structures, either in-phase or in antiphase, and with one sawtooth wall opposite a flat wall have been investigated as a function of the sawtooth pitch. The optical textures of the observed states are in excellent agreement with the predictions of nematic Q-tensor theory. The frequencies of occurrence of the different states are broadly consistent with the expected inverse correlation with the Q-tensor predictions for their energy.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Subjects: | Q Science > QC Physics |
Publisher: | Institute of Physics |
ISSN: | 0022-3727 |
Last Modified: | 21 Oct 2022 09:03 |
URI: | https://orca.cardiff.ac.uk/id/eprint/35183 |
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