Two-order-parameter model of the liquid-glass transition. I. Relation between glass transition and crystallization

@article{citeulike:2453675, abstract = {Recently we proposed a two-order-parameter model of liquid to understand the liquid-glass transition, liquid-liquid transition, and anomalies of water-type liquids in a unified manner. Here we discuss the relation between our model and previous models of the liquid-glass transition, focusing on the difference in the basic standpoint among the models. We argue that (i) actual liquids universally have a tendency of spontaneous formation of locally favored structures and (ii) liquid-glass transition is controlled by the competition between long-range density ordering toward crystallization and short-range bond ordering toward the formation of locally favored structures due to the incompatibility in their symmetry. Thus, we regard vitrification as phenomena that are intrinsically related to crystallization. Previous models, on the other hand, regard vitrification as a result of (a) an homogeneous increase in the density and the resulting cooperativity in molecular motion or (b) the frustration intrinsic to a liquid state itself. Accordingly, they presuppose the kinetic avoidance of crystallization and thus do not put focus on `crystallization'. This leads to the essential difference in the physical picture between our model and previous models. By comparing models, we aim at gaining further insight into what is the physical origin of the liquid-glass transition and its possible connection with crystallization.}, author = {Tanaka, Hajime }, citeulike-article-id = {2453675}, doi = {http://dx.doi.org/10.1016/j.jnoncrysol.2005.09.008}, journal = {Journal of Non-Crystalline Solids}, keywords = {2005, crystallization, glass, tanaka, theory, transition}, month = {November}, number = {43-45}, pages = {3371--3384}, posted-at = {2008-03-01 20:18:46}, priority = {2}, title = {Two-order-parameter model of the liquid-glass transition. I. Relation between glass transition and crystallization}, url = {http://dx.doi.org/10.1016/j.jnoncrysol.2005.09.008}, volume = {351}, year = {2005} }

TY - JOUR ID - citeulike:2453675 L3 - citeulike-article-id:2453675 TI - Two-order-parameter model of the liquid-glass transition. I. Relation between glass transition and crystallization JF - Journal of Non-Crystalline Solids VL - 351 IS - 43-45 SP - 3371 EP - 3384 N2 - Recently we proposed a two-order-parameter model of liquid to understand the liquid-glass transition, liquid-liquid transition, and anomalies of water-type liquids in a unified manner. Here we discuss the relation between our model and previous models of the liquid-glass transition, focusing on the difference in the basic standpoint among the models. We argue that (i) actual liquids universally have a tendency of spontaneous formation of locally favored structures and (ii) liquid-glass transition is controlled by the competition between long-range density ordering toward crystallization and short-range bond ordering toward the formation of locally favored structures due to the incompatibility in their symmetry. Thus, we regard vitrification as phenomena that are intrinsically related to crystallization. Previous models, on the other hand, regard vitrification as a result of (a) an homogeneous increase in the density and the resulting cooperativity in molecular motion or (b) the frustration intrinsic to a liquid state itself. Accordingly, they presuppose the kinetic avoidance of crystallization and thus do not put focus on `crystallization'. This leads to the essential difference in the physical picture between our model and previous models. By comparing models, we aim at gaining further insight into what is the physical origin of the liquid-glass transition and its possible connection with crystallization. KW - 2005 KW - crystallization KW - glass KW - tanaka KW - theory KW - transition AU - Tanaka, Hajime PY - 2005/11/01/ UR - http://dx.doi.org/10.1016/j.jnoncrysol.2005.09.008 ER -