Defects and ordering in nematic coatings on uniaxial and biaxial colloids

Martin A. Bates; Gregor Skačej; Claudio Zannoni

doi:10.1039/B917180K

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Soft Matter

Issue 3, 2010

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Defects and ordering in nematic coatings on uniaxial and biaxial colloids

Martin A. Bates , Gregor Skačej and Claudio Zannoni

Soft Matter, 2010, 6, 655-663

DOI: 10.1039/B917180K
Received 19 Aug 2009, Accepted 08 Oct 2009
First published on the web 14 Dec 2009

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We present a systematic lattice Monte Carlo simulation study of nematic ordering in thin nematic shells on uniaxial and biaxial colloidal particles. Typically, four mutually repulsive half-strength defect lines penetrating the shell are observed, as found for spherical particles. For shells of constant thickness, the defect lines tend to accumulate in the high curvature regions. If the thickness of the nematic coating varies across the surface, the defect lines tend to be located in the thinnest regions. On increasing the shell thickness, the defect lines transform into escaped structures with surface point defects.

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Defects and ordering in nematic coatings on uniaxial and biaxial colloids

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