Thu, 21 Aug 2008 21:37:09 BST CiteULike: di dchen glotzer http://www.citeulike.org/user/dchen/tag/glotzer CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2453992 <i>Journal of Physics: Condensed Matter, Vol. 11, No. 10A. (1999), pp. A285-A295.</i><br /><br />We examine the phenomenon of dynamical heterogeneity in computer simulations of an equilibrium, glass-forming liquid. We describe several approaches for quantifying the spatial correlation of single-particle motion, and show that spatial correlations of particle displacements become increasingly long range as the temperature decreases toward the mode-coupling critical temperature. Quantifying spatially heterogeneous dynamics in computer simulations of glass-forming liquids Sharon Glotzer Claudio Donati doi:10.1088/0953-8984/11/10A/026 Journal of Physics: Condensed Matter, Vol. 11, No. 10A. (1999), pp. A285-A295. 2008-03-01T23:23:23-00:00 1999 Journal of Physics: Condensed Matter 11 10A A285 A295 function glotzer simulation http://www.citeulike.org/user/dchen/article/2059896 <i>The Journal of Chemical Physics, Vol. 112, No. 2. (2000), pp. 509-512.</i><br /><br />  Time-dependent, four-point density correlation function description of dynamical heterogeneity and decoupling in supercooled liquids Sharon Glotzer Vladimir Novikov Thomas The Journal of Chemical Physics, Vol. 112, No. 2. (2000), pp. 509-512. 2007-12-05T10:11:21-00:00 2000 The Journal of Chemical Physics 112 2 509 512 AIP function glotzer heterogeneity http://www.citeulike.org/user/dchen/article/1875705 <i>Physical Review E, Vol. 60, No. 3. (1999), 3107.</i><br /><br />Using extensive molecular dynamics simulations of an equilibrium; glass-forming Lennard-Jones mixture; we characterize in detail the local atomic motions. We show that spatial correlations exist among particles undergoing extremely large (“mobile”) or extremely small (“immobile”) displacements over a suitably chosen time interval. The immobile particles form the cores of relatively compact clusters; while the mobile particles move cooperatively and form quasi-one-dimensional; stringlike clusters. The strength and length scale of the correlations between mobile particles are found to grow strongly with decreasing temperature; and the mean cluster size appears to diverge near the mode-coupling critical temperature. We show that these correlations in the particle displacements are related to equilibrium fluctuations in the local potential energy and local composition. Spatial correlations of mobility and immobility in a glass-forming Lennard-Jones liquid Claudio Donati Sharon Glotzer Peter Poole Walter Kob Steven Plimpton doi:10.1103/PhysRevE.60.3107 Physical Review E, Vol. 60, No. 3. (1999), 3107. 2007-11-07T00:33:19-00:00 1999 Physical Review E 60 3 3107 American Physical Society glass glotzer mobility http://www.citeulike.org/user/dchen/article/1998117 <i>Journal of Non-Crystalline Solids, Vol. 274, No. 1-3. (September 2000), pp. 342-355.</i><br /><br />In this paper, review of recent theoretical and simulation work on dynamical heterogeneity and correlated particle motion in glass-forming liquids and polymers is presented. Evidence for increasing mobility fluctuations in these systems with decreasing temperature, and the relationship between dynamical heterogeneity and decoupling of diffusion and structural relaxation is described. The relationship between dynamical heterogeneity, string-like collective motion, the clustering of strings, and mode-coupling theory is briefly discussed. Spatially heterogeneous dynamics in liquids: insights from simulation Sharon Glotzer doi:10.1016/S0022-3093(00)00225-8 Journal of Non-Crystalline Solids, Vol. 274, No. 1-3. (September 2000), pp. 342-355. 2007-11-28T00:15:59-00:00 2000 Journal of Non-Crystalline Solids 274 1-3 342 355 glotzer heterogeneity simulation