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Towing, breathing, splitting, and overtaking in driven colloidal liquid crystals.

作者信息

Härtel A, Blaak R, Löwen H

机构信息

Institut für Theoretische Physik II: Weiche Materie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany.

出版信息

Phys Rev E Stat Nonlin Soft Matter Phys. 2010 May;81(5 Pt 1):051703. doi: 10.1103/PhysRevE.81.051703. Epub 2010 May 6.

DOI:10.1103/PhysRevE.81.051703
PMID:20866243
Abstract

The nonequilibrium response of a colloidal liquid-crystalline nematic phase to an external aligning field, which rotates in a plane, is explored by dynamical fundamental measure density-functional theory. Depending on the drive frequency, different dynamical states are found, which are characterized by towing and overtaking of the nematic director by the field as well as by breathing and dynamical splitting of the orientational distribution peak. This complex response can be exploited for smart optical switching and mixing devices.

摘要

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