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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 |
Related resource: | http://dx.doi.org/10.1103/PhysRevLett.95.027801 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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528074.pdf | 207.16 kB | Adobe PDF | View/Open |
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