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arXiv · 0911.5330

Relation between static short-range order and dynamic heterogeneities in a nanoconfined liquid crystal

Ronan Lefort·Denis Morineau·Régis Guégan·Mohammed Guendouz·Jean-Marc Zanotti·Bernhard Frick
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Abstract

We analyze the molecular dynamics heterogeneity of the liquid crystal 4-n-octyl-4'-cyanobiphenyl nanoconfined in porous silicon. We show that the temperature dependence of the dynamic correlation length ?wall, which measures the distance over which a memory of the interfacial slowing down of the molecular dynamics persists, is closely related to the growth of the short-range static order arising from quenched random fields. More generally, this result may also shed some light on the connection between static and dynamic heterogeneities in a wide class of condensed and soft matter systems.

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Ronan Lefort, Denis Morineau, Régis Guégan, Mohammed Guendouz, Jean-Marc Zanotti, Bernhard Frick. 2009-11-27. Relation between static short-range order and dynamic heterogeneities in a nanoconfined liquid crystal. https://doi.org/10.1103/physreve.78.040701

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