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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4645

Title: Microscopic dynamics of recovery in sheared depletion gels
Authors: Chung, B.
Ramakrishnan, S.
Bandyopadhyay, Ranjini
Issue Date: 2006
Publisher: American Physical Society
Citation: Physical Review Letters, 2005, Vol.96, p228301
Abstract: We report x-ray photon correlation spectroscopy and diffusing wave spectroscopy studies of depletion gels formed from nanoscale silica colloids in solutions of nonabsorbing polymer following the cessation of shear. The two techniques provide a quantitatively coherent picture of the dynamics as ballistic or convective motion of colloidal clusters whose internal motion is arrested. While the dynamics possesses features characteristic of nonergodic soft solids, including a relaxation time that grows linearly with the time since shear, comparison with behavior of quenched supercooled liquids indicates that this evolution is not directly related to traditional aging phenomena in glasses.
Description: Open Access.
URI: http://hdl.handle.net/2289/4645
ISSN: 0031-9007
1079-7114 (Online)
Copyright: 2006 American Physical Society
Appears in Collections:Research Papers (SCM)

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