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

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

2009-11-27

arxiv.org/abs/0911.5330v1

Physical Review E: Statistical, Nonlinear, and Soft Matter Physics Vol.78, Issue 4 (2008) 040701

Physics

Chemical Physics

Scientific paper

10.1103/PhysRevE.78.040701

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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