Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/13265
Title: Backflow-induced asymmetric collapse of disclination lines in liquid crystals
Author: Oswald, Patrick
Ignés i Mullol, Jordi
Keywords: Cristal·lografia
Reologia
Cristalls líquids
Crystallography
Rheology
Liquid crystals
Issue Date: 2005
Publisher: American Physical Society
Abstract: We present experiments where opposed pairs of planar parallel disclination lines of topological strength s=±1 move due to their mutual attraction. Our measurements show that their motion is clearly asymmetric, with +1 defects moving up to twice as fast as -1 ones. This is a clear indication of backflow, given the intrinsic isotropic elasticity of our system. A phenomenological model is able to account for the experimental observations by renormalizing the orientational diffusivity estimated from the velocity of each defect.
Note: Reproducció digital del document proporcionada PROLA i http://dx.doi.org/10.1103/PhysRevLett.95.027801
It is part of: Physical Review Letters, 2005, vol. 95, núm. 2, p. 027801-1-027801-4
URI: http://hdl.handle.net/2445/13265
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

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