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Stringlike clusters and cooperative interlayer permeation in smectic liquid crystals formed by colloidal rods



Stringlike clusters and cooperative interlayer permeation in smectic liquid crystals formed by colloidal rods



Physical Review Letters 103(24): 248304



Using simulations of hard rods in smectic-A states, we find stringlike clusters of up to 10 interlayer rods exhibiting dynamic cooperativity. We also find non-gaussian diffusion and heterogeneous dynamics due to the equilibrium periodic smectic density profiles, which give rise to permanent barriers for layer-to-layer diffusion. This relaxation behavior is surprisingly similar to that of nonequilibrium supercooled liquids, although there the particles are trapped in transient (instead of permanent) cages.

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Accession: 055941845

Download citation: RISBibTeXText

PMID: 20366239

DOI: 10.1103/physrevlett.103.248304


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