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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

Abstract

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
OAI identifier: oai:repositorio.uchile.cl:2250/126260
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