Volume 96, Number 3, November 2011
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||24 October 2011|
Mapping the glassy dynamics of soft spheres onto hard-sphere behavior
Institut für Theoretische Physik 2: Weiche Materie, Heinrich-Heine-Universität Düsseldorf 40225 Düsseldorf, Germany, EU
2 Department of Physics and Astronomy, University of Pennsylvania - Philadelphia, PA 19104, USA
3 The Molecular Foundry, Lawrence Berkeley National Laboratory - Berkeley, CA 94720, USA
4 The James Franck Institute, The University of Chicago - Chicago, IL 60637, USA
Accepted: 20 September 2011
We show that the dynamics of soft-sphere systems with purely repulsive interactions can be described by introducing an effective hard-sphere diameter determined using the Andersen-Weeks-Chandler approximation. We find that this approximation, known to describe static properties of liquids, also gives a good description of a dynamical quantity, the relaxation time, even in the vicinity of the glass transition.
PACS: 64.70.kj – Glasses / 64.70.pm – Liquids / 64.70.pv – Colloids
© EPLA, 2011
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.