Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015] Année : 2008

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

Résumé

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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hal-00426776 , version 1 (27-11-2009)

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Ronan Lefort, Denis Morineau, Régis Guégan, Mohammed Guendouz, Jean-Marc Zanotti, et al.. Relation between static short-range order and dynamic heterogeneities in a nanoconfined liquid crystal. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2008, Vol.78 (Issue 4), pp.040701. ⟨10.1103/PhysRevE.78.040701⟩. ⟨hal-00426776⟩
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