Defect trajectories and domain-wall loop dynamics during two-frequency switching in a bistable azimuthal nematic device
Davidson, A.J. and Brown, C.V. and Mottram, N.J. and Ladak, S. and Evans, C.R. (2010) Defect trajectories and domain-wall loop dynamics during two-frequency switching in a bistable azimuthal nematic device. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 81 (5). 051712. ISSN 2470-0053 (https://doi.org/10.1103/PhysRevE.81.051712)
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Bistable azimuthal nematic alignment textures have been created in micrometer-scale channels for which one sidewall is smooth and straight and the other possesses a symmetric sawtooth morphology. The optical textures have been observed during dynamic switching between the two stable states in response to dual frequency ac waveform driving of a highly dispersive nematic liquid crystal. The switching processes involves collapsing of filamentlike director reorientation (tilt-wall) loops and the associated motion and annihilation of surface defects along and close to the edge at the sawtooth sidewall. The predictions from both the n-director-based Ericksen-Leslie theory and the Q-tensor theory are in good agreement with the experimental observations
ORCID iDs
Davidson, A.J., Brown, C.V., Mottram, N.J. ORCID: https://orcid.org/0000-0002-7265-0059, Ladak, S. and Evans, C.R.;-
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Item type: Article ID code: 28115 Dates: DateEvent27 May 2010PublishedSubjects: Science > Mathematics
Science > PhysicsDepartment: Faculty of Science > Mathematics and Statistics Depositing user: Mrs Carolynne Westwood Date deposited: 13 Oct 2010 13:57 Last modified: 11 Sep 2024 16:32 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/28115