Magnetic field-induced vortex triplet and vortex lattice in a liquid crystal cell

Vortices are particle-type solutions with topological charges that can steer the dynamics in various physical systems. By the application of electromagnetic fields onto a homeotropic nematic liquid crystal cell, we are able to induce a vortex triplet that remains stable and trapped at a given locati...

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Bibliographic Details
Published in:Physical review research 2020-11, Vol.2 (4), p.042026, Article 042026
Main Authors: Calisto, Enrique, Clerc, Marcel G., Zambra, Valeska
Format: Article
Language:English
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Summary:Vortices are particle-type solutions with topological charges that can steer the dynamics in various physical systems. By the application of electromagnetic fields onto a homeotropic nematic liquid crystal cell, we are able to induce a vortex triplet that remains stable and trapped at a given location. For a low frequency of the driven voltage, we observe that the vortex triplet is unstable and gives rise to the appearance of a topological lattice. Based on an amplitude equation valid close to reorientational instability, it allows us to reveal the origin of the vortex triplet and vortex lattice. Numerical simulations show a quite fair agreement with theoretical findings and experimental observations.
ISSN:2643-1564
2643-1564
DOI:10.1103/PhysRevResearch.2.042026