Nematic braids: 2D entangled nematic liquid crystal colloids

Miha Ravnik; Slobodan Žumer

doi:10.1039/B913065A

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Soft Matter

Issue 22, 2009

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Nematic braids: 2D entangled nematic liquid crystal colloids

Miha Ravnik and Slobodan Žumer

Soft Matter, 2009, 5, 4520-4525

DOI: 10.1039/B913065A
Received 01 Jul 2009, Accepted 25 Aug 2009
First published on the web 17 Sep 2009
This article is part of the collection: Modelling of Soft Matter

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Abstract
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Assembly of several entangled clusters and 2D colloidal crystals is demonstrated in nematic solvents using numerical modeling based on Landau–de Gennes free energy. Micron-sized particles that build novel topological objects are bound by delocalized disclination loops of various conformations. The metastable defect conformations are accessed via numerical temperature quenching from the isotropic to nematic phase. Equilibration of entangled structures with respect to liquid crystalline and particles' degrees of freedom is demonstrated. Finally, possible experimental approaches towards periodic entangled colloidal crystals are briefly addressed.

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Soft Matter

Nematic braids: 2D entangled nematic liquid crystal colloids

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