Sat, 19 Jul 2008 11:25:26 BST CiteULike: waitonhill's library [181 articles] http://www.citeulike.org/user/waitonhill/article/2517847 CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/waitonhill/article/2517847 <i>Journal of Non-Crystalline Solids, Vol. 235-237 (2 August 1998), pp. 331-334.</i><br /><br />A binary Lennard-Jones liquid has been investigated by molecular dynamics at equilibrium supercooled conditions. At the lowest temperature investigated, hopping is present in the system as indicated by a secondary peak in 4[pi]r2Gs(r,t), where Gs(r,t) is the van Hove self correlation function. To examine the dynamics of the system, we consider transitions between the inherent structures (local minima in the potential energy) along the trajectory. We conclude that the plateau in the mean square displacement found at lower temperatures is indeed a result of particles being trapped in local "cages", as often argued, and that the system has a single-peaked distribution of hopping-distances centered around the characteristic intermolecular distance. Hopping in a supercooled binary Lennard-Jones liquid Thomas Schroder Jeppe Dyre doi:10.1016/S0022-3093(98)00564-X Journal of Non-Crystalline Solids, Vol. 235-237 (2 August 1998), pp. 331-334. 2008-03-12T04:37:17-00:00 1998 Journal of Non-Crystalline Solids 235-237 331 334 no-tag