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EnglishEmploying 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. © IOP Publishing and Deutsche Physikalische Gesellschaft.
| Titolo: | Characterization of the vortex-pair interaction law and nonlinear mobility effects |
| Autori: | |
| Data di pubblicazione: | 2013 |
| Rivista: | |
| Abstract: | Employing 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. © IOP Publishing and Deutsche Physikalische Gesellschaft. |
| Handle: | http://hdl.handle.net/11566/279745 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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