Dynamics of supercooled liquids and the glass transition

@article{citeulike:775823, abstract = {Closed nonlinear equations are derived for a self-consistent treatment of density propagation, self-diffusion and current relaxation in a classical monatomic fluid. The solution for a hard-sphere model system brings out a phase transition to a glass at the packing fraction 0.516. Approaching the transition from the glass side the particle mean-square displacement increases to a finite value. A simplified model is analysed in detail. Approaching the transition from the liquid side the diffusivity is predicted to decrease to zero with a power law with exponent 1.76 which the authors find to agree well with some experimental data. The low-frequency density spectrum is found to consist of two contributions; one is an elastic line of the frozen structure on the glass side, which then decays to a narrow diffusion broadened quasielastic peak on the fluid side; the other part is described by a dynamical scaling law and it yields in particular a spectrum diverging at the glass point with certain exponents.}, author = {Bengtzelius, U. and Gotze, W. and Sjolander, A. }, citeulike-article-id = {775823}, doi = {http://dx.doi.org/10.1088/0022-3719/17/33/005}, journal = {Journal of Physics C: Solid State Physics}, keywords = {glass, supercooled, theory}, number = {33}, pages = {5915--5934}, posted-at = {2006-07-27 16:36:13}, priority = {2}, title = {Dynamics of supercooled liquids and the glass transition}, url = {http://dx.doi.org/10.1088/0022-3719/17/33/005}, volume = {17}, year = {1984} }

TY - JOUR ID - citeulike:775823 L3 - citeulike-article-id:775823 TI - Dynamics of supercooled liquids and the glass transition JF - Journal of Physics C: Solid State Physics VL - 17 IS - 33 SP - 5915 EP - 5934 N2 - Closed nonlinear equations are derived for a self-consistent treatment of density propagation, self-diffusion and current relaxation in a classical monatomic fluid. The solution for a hard-sphere model system brings out a phase transition to a glass at the packing fraction 0.516. Approaching the transition from the glass side the particle mean-square displacement increases to a finite value. A simplified model is analysed in detail. Approaching the transition from the liquid side the diffusivity is predicted to decrease to zero with a power law with exponent 1.76 which the authors find to agree well with some experimental data. The low-frequency density spectrum is found to consist of two contributions; one is an elastic line of the frozen structure on the glass side, which then decays to a narrow diffusion broadened quasielastic peak on the fluid side; the other part is described by a dynamical scaling law and it yields in particular a spectrum diverging at the glass point with certain exponents. KW - glass KW - supercooled KW - theory AU - Bengtzelius, U AU - Gotze, W AU - Sjolander, A PY - 1984/// UR - http://dx.doi.org/10.1088/0022-3719/17/33/005 ER -