TY - JOUR
T1 - Relation between static short-range order and dynamic heterogeneities in a nanoconfined liquid crystal
AU - Lefort, Ronan
AU - Morineau, Denis
AU - Guégan, Régis
AU - Guendouz, Mohammed
AU - Zanotti, Jean Marc
AU - Frick, Bernhard
PY - 2008/10/6
Y1 - 2008/10/6
N2 - 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 ξwall, 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.
AB - 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 ξwall, 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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U2 - 10.1103/PhysRevE.78.040701
DO - 10.1103/PhysRevE.78.040701
M3 - Article
AN - SCOPUS:54149110955
VL - 78
JO - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
SN - 1063-651X
IS - 4
M1 - 040701
ER -