Glasses in hard spheres with short-range attraction

by: KN Pham, SU Egelhaaf, PN Pusey, WCK Poon

Physical Review E, Vol. 69, No. 1. (28 January 2004), 011503.

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We report a detailed experimental study of the structure and dynamics of glassy states in hard spheres with short-range attraction. The system is a suspension of nearly hard-sphere colloidal particles and nonadsorbing linear polymer which induces a depletion attraction between the particles. Observation of crystallization reveals a reentrant glass transition. Static light scattering shows a continuous change in the static structure factors upon increasing attraction. Dynamic light scattering results; which cover 11 orders of magnitude in time; are consistent with the existence of two distinct kinds of glasses; those dominated by interparticle repulsion and caging; and those dominated by attraction. Samples close to the “ A 3 point” predicted by mode coupling theory for such systems show very slow; logarithmic dynamics.

@article{citeulike:2453919, abstract = {We report a detailed experimental study of the structure and dynamics of glassy states in hard spheres with short-range attraction. The system is a suspension of nearly hard-sphere colloidal particles and nonadsorbing linear polymer which induces a depletion attraction between the particles. Observation of crystallization reveals a reentrant glass transition. Static light scattering shows a continuous change in the static structure factors upon increasing attraction. Dynamic light scattering results; which cover 11 orders of magnitude in time; are consistent with the existence of two distinct kinds of glasses; those dominated by interparticle repulsion and caging; and those dominated by attraction. Samples close to the “ A 3 point” predicted by mode coupling theory for such systems show very slow; logarithmic dynamics.}, author = {Pham, K. N. and Egelhaaf, S. U. and Pusey, P. N. and Poon, W. C. K. }, citeulike-article-id = {2453919}, doi = {http://dx.doi.org/10.1103/PhysRevE.69.011503}, journal = {Physical Review E}, keywords = {depletion, glass, poon}, month = {January}, number = {1}, pages = {011503+}, posted-at = {2008-03-01 22:43:07}, priority = {2}, publisher = {American Physical Society}, title = {Glasses in hard spheres with short-range attraction}, url = {http://dx.doi.org/10.1103/PhysRevE.69.011503}, volume = {69}, year = {2004} }

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TY - JOUR ID - citeulike:2453919 L3 - citeulike-article-id:2453919 TI - Glasses in hard spheres with short-range attraction JF - Physical Review E VL - 69 IS - 1 SP - 011503 PB - American Physical Society N2 - We report a detailed experimental study of the structure and dynamics of glassy states in hard spheres with short-range attraction. The system is a suspension of nearly hard-sphere colloidal particles and nonadsorbing linear polymer which induces a depletion attraction between the particles. Observation of crystallization reveals a reentrant glass transition. Static light scattering shows a continuous change in the static structure factors upon increasing attraction. Dynamic light scattering results; which cover 11 orders of magnitude in time; are consistent with the existence of two distinct kinds of glasses; those dominated by interparticle repulsion and caging; and those dominated by attraction. Samples close to the “ A 3 point” predicted by mode coupling theory for such systems show very slow; logarithmic dynamics. KW - depletion KW - glass KW - poon AU - Pham, KN AU - Egelhaaf, SU AU - Pusey, PN AU - Poon, WCK PY - 2004/01/28/ UR - http://dx.doi.org/10.1103/PhysRevE.69.011503 ER -

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