A two dimensional glass: microstructure and dynamics of a 2D binary mixture

@article{citeulike:2517830, abstract = {A 2D equimolar binary mixture of r-12 soft disks with a diameter ratio of 1.4 is shown, via constant pressure-temperature molecular dynamics simulations, to exhibit, on cooling, a wide range of properties of glass-forming liquids. At all temperatures studied, the liquid is found to be kinetically stable with respect to crystallisation over time scales many times that of the structural relaxation. The temperature at which the `step' in the incoherent scattering function first appears is identified as an important crossover in relaxation mechanisms. Cooling below this temperature results in the development of kinetic heterogeneity and the breakdown in scaling between the structural relaxation time and the diffusion constant. Direct visualisation provides a measure of increasing cooperativity and insight into the nature of the collective motions.}, author = {Perera, Donna N. and Harrowell, Peter }, citeulike-article-id = {2517830}, doi = {10.1016/S0022-3093(98)00563-8}, journal = {Journal of Non-Crystalline Solids}, month = {August}, pages = {314--319}, posted-at = {2008-03-12 04:32:27}, priority = {2}, title = {A two dimensional glass: microstructure and dynamics of a 2D binary mixture}, url = {http://dx.doi.org/10.1016/S0022-3093(98)00563-8}, volume = {235-237}, year = {1998} }

TY - JOUR ID - citeulike:2517830 TI - A two dimensional glass: microstructure and dynamics of a 2D binary mixture JF - Journal of Non-Crystalline Solids VL - 235-237 SP - 314 EP - 319 N2 - A 2D equimolar binary mixture of r-12 soft disks with a diameter ratio of 1.4 is shown, via constant pressure-temperature molecular dynamics simulations, to exhibit, on cooling, a wide range of properties of glass-forming liquids. At all temperatures studied, the liquid is found to be kinetically stable with respect to crystallisation over time scales many times that of the structural relaxation. The temperature at which the `step' in the incoherent scattering function first appears is identified as an important crossover in relaxation mechanisms. Cooling below this temperature results in the development of kinetic heterogeneity and the breakdown in scaling between the structural relaxation time and the diffusion constant. Direct visualisation provides a measure of increasing cooperativity and insight into the nature of the collective motions. AU - Perera, Donna AU - Harrowell, Peter PY - 1998/08/02/ UR - http://dx.doi.org/10.1016/S0022-3093(98)00563-8 ER -