Sat, 19 Jul 2008 11:24:35 BST CiteULike: waitonhill's Widmer-Cooper http://www.citeulike.org/user/waitonhill/author/Widmer-Cooper CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/waitonhill/article/2517667 <i>Journal of Non-Crystalline Solids, Vol. 352, No. 42-49. (15 November 2006), pp. 5098-5102.</i><br /><br />We examine the relation between the free volume per particle and the variance of the particle position, equivalent to a local Debye-Waller (DW) factor for a 2D glass-forming alloy using molecular dynamics simulations. We find that the latter quantity exhibits significant spatial heterogeneity despite involving trajectories two orders of magnitude shorter than those typically used to measure such heterogeneities. We find that the free volume exhibits no significant spatial correlation with the local DW factor. We conclude that the spatial variation in local free volume is not the cause of the short time dynamic heterogeneity. Free volume cannot explain the spatial heterogeneity of Debye-Waller factors in a glass-forming binary alloy Asaph Widmer-Cooper Peter Harrowell doi:10.1016/j.jnoncrysol.2006.01.136 Journal of Non-Crystalline Solids, Vol. 352, No. 42-49. (15 November 2006), pp. 5098-5102. 2008-03-12T04:08:42-00:00 2006 Journal of Non-Crystalline Solids 352 42-49 5098 5102 no-tag