Chirality-Biased Point Defects Dynamics on a Disclination Line in a Nematic Liquid Crystal - Condensed Matter > Soft Condensed MatterReport as inadecuate




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Abstract: Chiral additives in the nematic liquid crystal can alter the dynamics ofpoint defects moving on a disclination line. They exert a constant force ondefects, leading to the bimodal distribution of distances between them at longtimes. The evolution of the system of defects in the presence of chiraladditives provides a very direct proof of the existence of repulsive forcesbetween the defects at large distances. We find that addition of a sufficientamount of chiral compound removes all point defects from the system. Theprocess is studied in the system of 8CB 4-n-octyl-4 -cyanobiphenyl dopedwith the chiral compound S811 from Merck Co. and in the computer simulations.



Author: Andrzej Zywocinski, Katarzyna Pawlak, Robert Holyst, Patrick Oswald Phys-ENS

Source: https://arxiv.org/







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