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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) |
Files in This Item:
File | Description | Size | Format | |
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2006_PhysRevLett_V96_p228301.pdf Restricted Access | Open Access | 234.94 kB | Adobe PDF | View/Open Request a copy |
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