Journal
SOFT MATTER
Volume 6, Issue 7, Pages 1462-1466Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b916342e
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Funding
- Department of Atomic Energy, Government of India
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We investigate the stress relaxation behavior on the application of step strains to aging aqueous suspensions of the synthetic clay Laponite. The stress exhibits a two-step decay, from which the slow relaxation modes are extracted as functions of the sample ages and applied step strain deformations. Interestingly, the slow time scales that we estimate show a dramatic enhancement with increasing strain amplitudes. We argue that the system ends up exploring the deeper sections of its energy landscape following the application of the step strain.
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