Frustration on the way to crystallization in glass

@article{citeulike:2090365, abstract = {Some liquids do not crystallize below the melting point, but instead enter into a supercooled state and on cooling eventually become a glass at the glass-transition temperature. During this process, the liquid dynamics not only drastically slow down, but also become progressively more heterogeneous. The relationship between the kinetic slowing down and growing dynamic heterogeneity is a key problem of the liquid–glass transition. Here, we study this problem by using a liquid model, with a crystalline ground state, for which we can systematically control frustration against crystallization. We found that slow regions having a high degree of crystalline order emerge below the melting point, and their characteristic size and lifetime increase steeply on cooling. These crystalline regions lead to dynamic heterogeneity, suggesting a connection to the complex free-energy landscape and the resulting slow dynamics. These findings point towards an intrinsic link between the glass transition and crystallization.}, author = {Shintani, Hiroshi and Tanaka, Hajime }, citeulike-article-id = {2090365}, doi = {http://dx.doi.org/10.1038/nphys235}, journal = {Nat Phys}, keywords = {crystals, dyn-het, glass, granular, jamming, structure}, month = {March}, number = {3}, pages = {200--206}, posted-at = {2008-06-23 15:47:54}, priority = {5}, title = {Frustration on the way to crystallization in glass}, url = {http://dx.doi.org/10.1038/nphys235}, volume = {2}, year = {2006} }

TY - JOUR ID - citeulike:2090365 L3 - citeulike-article-id:2090365 TI - Frustration on the way to crystallization in glass JF - Nat Phys VL - 2 IS - 3 SP - 200 EP - 206 N2 - Some liquids do not crystallize below the melting point, but instead enter into a supercooled state and on cooling eventually become a glass at the glass-transition temperature. During this process, the liquid dynamics not only drastically slow down, but also become progressively more heterogeneous. The relationship between the kinetic slowing down and growing dynamic heterogeneity is a key problem of the liquid–glass transition. Here, we study this problem by using a liquid model, with a crystalline ground state, for which we can systematically control frustration against crystallization. We found that slow regions having a high degree of crystalline order emerge below the melting point, and their characteristic size and lifetime increase steeply on cooling. These crystalline regions lead to dynamic heterogeneity, suggesting a connection to the complex free-energy landscape and the resulting slow dynamics. These findings point towards an intrinsic link between the glass transition and crystallization. KW - crystals KW - dyn-het KW - glass KW - granular KW - jamming KW - structure AU - Shintani, Hiroshi AU - Tanaka, Hajime PY - 2006/03// UR - http://dx.doi.org/10.1038/nphys235 ER -