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Rejuvenation and overaging in a colloidal glass under shear | | Virgile Viasnoff
; Francois Lequeux
; | | Date: |
15 Mar 2002 | | Subject: | Soft Condensed Matter | cond-mat.soft | | Affiliation: | ESPCI, LPM, 10 rue Vauquelin France | | Abstract: | We report the modifications of the microscopic dynamics of a colloidal glass submitted to shear. We use multispeckle diffusing wave spectroscopy to monitor the evolution of the spontaneous slow relaxation processes after the sample have been submitted to various straining. We show that high shear rejuvenates the system and accelerates its dynamics whereas moderate shear overage the system. We analyze this phenomena within the frame of the Bouchaud’s trap model. | | Source: | arXiv, cond-mat/0203328 | | Other source: | [GID 629456] pmid12190596 | | Services: | Forum | Review | PDF | Favorites | |
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