Cooperative motion and growing length scales in supercooled confined liquids

By P. Scheidler, Walter Kob, Kurt Binder. 2002

214 citations recorded by the source corpus.

Using molecular-dynamics simulations we investigate the relaxation dynamics of a supercooled liquid close to a rough as well as 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. Finally, we calculate the frequency-dependent average susceptibility of such confined systems and show that they compare very well with experimental data.

Subfields: Condensed Matter Physics, Materials Chemistry, Physical and Theoretical Chemistry

View Paper: https://www.semanticscholar.org/paper/d5ff2de8982080723a77cb54c9b43896c74c5917

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Condensed Matter Physics

1. G. McKenna
2. M. Alcoutlabi

In Materials Chemistry

1. M. Alcoutlabi
2. G. McKenna
3. Christoph Schick
4. Matti Malinen
5. J. Sorvari

In Physical and Theoretical Chemistry

1. G. McKenna
2. Christoph Schick
3. M. Alcoutlabi

Citations in the corpus

• Effects of confinement on material behaviour at the nanometre size scale (2005, methodology): “In a later paper, Binder and co-workers [146] performed MD simulations to study the dynamics of supercooled liquids close to smooth walls as well as close to rough walls.”
• The amount of immobilized polymer in PMMA SiO$_{2}$ nanocomposites determined from calorimetric data (2007, background): “E C observed for the nanocomposites as it would be expected for a gradual change of mobility between the interface and the liquid polymer [81].”