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Mottram, Nj
University of Glasgow
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Publications (5/5 displayed)
- 2024Defect-influenced particle advection in highly confined liquid crystal flowscitations
- 2020Electrically controlled topological micro cargo transportationcitations
- 2007Multistable alignment states in nematic liquid crystal filled wellscitations
- 2006Shear-driven and pressure-driven flow of a nematic liquid crystal in a slowly varying channelcitations
- 2003Influence of flexoelectricity above the nematic Freedericksz transitioncitations
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article
Multistable alignment states in nematic liquid crystal filled wells
Abstract
Two distinct, stable alignment states have been observed for a nematic liquid crystal confined in a layer with thickness of 12 μm and in square wells with sides of length between 20 and 80 μm. The director lies in the plane of the layer and line defects occur in two corners of the squares. The positions of the defects determine whether the director orientation is across the diagonal or is parallel to two opposite edges of the square. The device is multistable because both the diagonal and parallel states are stable when rotated by multiples of 90° in plane.