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Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
Electric-field modulation of liquid crystal structures in contact with structured surfactant monolayers
Pau Guillamat1, Francesc Sagués1, Jordi Ignés-Mullol1
1Institut de Nanociència i Nanotecnologia (IN2UB) and Departament de Química Física, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Catalonia, Spain.
Abstract:
We present experiments in which we use an electric field to switch between different configurations in the cellular patterns induced in a confined nematic liquid crystal by the contact with a surfactant monolayer that features lateral order and surface defects. By using different combinations of far-field alignment and mesogen dielectric anisotropy, we unravel the nature and stability of point defects and disclinations resulting from the hybrid boundary conditions.
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