Abstract
We have studied experimentally the rheological behavior of concentrated suspensions of soft deformable microgels below the yield point. We have found history-dependent effects which are interpreted in terms of aging and rejuvenation phenomena, analogous to those existing in glassy systems. The stress amplitude controls the long-time memory and determines the slow evolution of the suspensions.
- Received 3 April 2000
DOI:https://doi.org/10.1103/PhysRevLett.85.4819
©2000 American Physical Society
