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Cooperative motion and growing length scales in supercooled confined liquids | | Peter Scheidler
; Walter Kob
; Kurt Binder
; | | Date: |
8 Apr 2002 | | Subject: | Statistical Mechanics; Disordered Systems and Neural Networks | cond-mat.stat-mech cond-mat.dis-nn | | Affiliation: | Institute of Physics, Mainz, Germany), Walter Kob (Laboratoire des Verres, Montpellier, France), and Kurt Binder (Institute of Physics, Mainz, Germany | | Abstract: | 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. | | Source: | arXiv, cond-mat/0204164 | | Services: | Forum | Review | PDF | Favorites | |
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