Direct visualization of ageing in colloidal glasses

by: Rachel E Courtland, Eric R Weeks

Journal of Physics: Condensed Matter, Vol. 15, No. 1. (2003), pp. S359-S365.

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Abstract

We use confocal microscopy to directly visualize the dynamics of ageing colloidal glasses. We prepare a colloidal suspension at high density, a simple model system that shares many properties with other glasses, and initiate experiments by stirring the sample. We follow the motion of several thousand colloidal particles after the stirring and observe that their motion significantly slows as the sample ages. The ageing is both spatially and temporally heterogeneous. Furthermore, while the characteristic relaxation timescale grows with the age of the sample, nontrivial particle motions continue to occur on all timescales.

@article{citeulike:2719807, abstract = {We use confocal microscopy to directly visualize the dynamics of ageing colloidal glasses. We prepare a colloidal suspension at high density, a simple model system that shares many properties with other glasses, and initiate experiments by stirring the sample. We follow the motion of several thousand colloidal particles after the stirring and observe that their motion significantly slows as the sample ages. The ageing is both spatially and temporally heterogeneous. Furthermore, while the characteristic relaxation timescale grows with the age of the sample, nontrivial particle motions continue to occur on all timescales.}, author = {Courtland, Rachel E. and Weeks, Eric R. }, citeulike-article-id = {2719807}, doi = {10.1088/0953-8984/15/1/349}, journal = {Journal of Physics: Condensed Matter}, keywords = {colloids, glass, technique, weeks}, number = {1}, pages = {S359--S365}, posted-at = {2008-04-26 01:04:22}, priority = {2}, title = {Direct visualization of ageing in colloidal glasses}, url = {http://dx.doi.org/10.1088/0953-8984/15/1/349}, volume = {15}, year = {2003} }

RIS record

TY - JOUR ID - citeulike:2719807 TI - Direct visualization of ageing in colloidal glasses JF - Journal of Physics: Condensed Matter VL - 15 IS - 1 SP - S359 EP - S365 N2 - We use confocal microscopy to directly visualize the dynamics of ageing colloidal glasses. We prepare a colloidal suspension at high density, a simple model system that shares many properties with other glasses, and initiate experiments by stirring the sample. We follow the motion of several thousand colloidal particles after the stirring and observe that their motion significantly slows as the sample ages. The ageing is both spatially and temporally heterogeneous. Furthermore, while the characteristic relaxation timescale grows with the age of the sample, nontrivial particle motions continue to occur on all timescales. KW - colloids KW - glass KW - technique KW - weeks AU - Courtland, Rachel AU - Weeks, Eric PY - 2003/// UR - http://dx.doi.org/10.1088/0953-8984/15/1/349 ER -

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