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Volume 144, 2010
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Can the isotropic-smectic transition of colloidal hard rods occur via nucleation and growth?

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Abstract

We investigate the isotropic-to-smectic transformation in a fluid of colloidal hard rods using computer simulations. At high supersaturation, we observe spinodal decomposition: many small clusters are formed at the initial stage of the phase transformation, which form a percolating network that eventually transforms into a stable bulk smectic phase. At low supersaturation, we find that nucleation and growth of the smectic phase is hampered by the pre-smectic ordering in the supersaturated isotropic fluid phase. As the system evolves mainly via cooperative motion of these smectic domains, the diffusion and attachment of single particles to the nucleation site is largely hindered.

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Article information


Submitted
28 Jan 2009
Accepted
27 Feb 2009
First published
21 Aug 2009

Faraday Discuss., 2010,144, 253-269
Article type
Paper

Can the isotropic-smectic transition of colloidal hard rods occur via nucleation and growth?

A. Cuetos, E. Sanz and M. Dijkstra, Faraday Discuss., 2010, 144, 253
DOI: 10.1039/B901594A

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