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Characterization of the vortex-pair interaction law and nonlinear mobility effects

By R. Barboza, S. Residori, T. Sauma, U. Bortolozzo, G. Assanto and Marcel Clerc Gavilán


Artículo de publicación ISIEmploying nematic liquid crystals in a homeotropic cell with a photosensitive wall, dissipative vortex pairs are selectively induced by external illumination and the interaction law is characterized for pairs of opposite topological charges. Contrary to the phenomenological fit with a force inversely proportional to the distance, the data provide evidence that nonlinear mobility effects must be taken into account. The observations lead to a reconciliation of experiments with theory

Publisher: 'IOP Publishing'
Year: 2013
DOI identifier: 10.1088/1367-2630/15/1/013028
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