Cooperative motion and growing length scales in supercooled confined liquids Auteur(s): Scheidler Peter, Kob W., Binder Kurt (Article) Publié: Europhysics Letters (Epl), vol. 59 p.701-707 (2002) Texte intégral en Openaccess : Ref HAL: hal-00113269_v1 Ref Arxiv: cond-mat/0204164 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote Résumé: Using molecular dynamics simulations we investigate the relaxation dynamics of a supercooled liquid close to a rough as well as close to a smooth wall. For the former situation the relaxation times increase strongly with decreasing distance from the wall whereas in the second case they strongly decrease. We use this dependence to extract various dynamical length scales and show that they grow with decreasing temperature. By calculating the frequency dependent average susceptibility of such confined systems we show that the experimental interpretation of such data is very difficult. Commentaires: 7 pages of Latex, 3 figures |