title: Relation between static short-range order and dynamic heterogeneities in a nanoconfined liquid crystal.
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 xi_(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.
authors.affiliation: Institut de Physique de Rennes (IPR), CNRS-UMR 6251, Université de Rennes 1, Rennes, France.
authors.forename: Ronan
authors.initials: R
authors.lastname: Lefort
authors.forename: Denis
authors.initials: D
authors.lastname: Morineau
authors.forename: Régis
authors.initials: R
authors.lastname: Guégan
authors.forename: Mohammed
authors.initials: M
authors.lastname: Guendouz
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Zanotti
authors.forename: Bernhard
authors.initials: B
authors.lastname: Frick