Correlations of structure and dynamics in an aging colloidal glass

@article{cianci06ssc, abstract = {We study concentrated colloidal suspensions, a model system which has a glass transition. Samples in the glassy state show aging, in that the motion of the colloidal particles slows as the sample ages from an initial state. We study the relationship between the static structure and the slowing dynamics, using confocal microscopy to follow the three-dimensional motion of the particles. The structure is quantified by considering tetrahedra formed by quadruplets of neighboring particles. We find that while the sample clearly slows down during aging, the static properties as measured by tetrahedral quantities do not vary. However, a weak correlation between tetrahedron shape and mobility is observed, suggesting that the structure facilitates the motion responsible for the sample aging.}, author = {Cianci, Gianguido C. and Courtland, Rachel E. and Weeks, Eric R.}, booktitle = {Soft Condensed Matter, Soft Condensed Matter}, citeulike-article-id = {1678088}, doi = {10.1016/j.ssc.2006.04.039}, journal = {Solid State Communications}, keywords = {aging, colloids, confocal, glass, pmma, structure, tetrahedra}, month = {September}, number = {11-12}, pages = {599--604}, posted-at = {2007-09-20 05:06:35}, priority = {0}, title = {Correlations of structure and dynamics in an aging colloidal glass}, url = {http://dx.doi.org/10.1016/j.ssc.2006.04.039}, volume = {139}, year = {2006} }

TY - JOUR ID - cianci06ssc L3 - citeulike-article-id:1678088 N2 - We study concentrated colloidal suspensions, a model system which has a glass transition. Samples in the glassy state show aging, in that the motion of the colloidal particles slows as the sample ages from an initial state. We study the relationship between the static structure and the slowing dynamics, using confocal microscopy to follow the three-dimensional motion of the particles. The structure is quantified by considering tetrahedra formed by quadruplets of neighboring particles. We find that while the sample clearly slows down during aging, the static properties as measured by tetrahedral quantities do not vary. However, a weak correlation between tetrahedron shape and mobility is observed, suggesting that the structure facilitates the motion responsible for the sample aging. IS - 11-12 JF - Solid State Communications EP - 604 TI - Correlations of structure and dynamics in an aging colloidal glass VL - 139 T2 - Soft Condensed Matter, Soft Condensed Matter SP - 599 KW - aging KW - colloids KW - confocal KW - glass KW - pmma KW - structure KW - tetrahedra AU - Cianci, Gianguido AU - Courtland, Rachel AU - Weeks, Eric PY - 2006/09// UR - http://dx.doi.org/10.1016/j.ssc.2006.04.039 ER -