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26 April 2024
 
  » pubmed » pmid17280252

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Origin of the slow dynamics and the aging of a soft glass
Sylvain Mazoyer ; Luca Cipelletti ; Laurence Ramos ;
Date 8 Dec 2006
Journal Phys Rev Lett, 97 (23), 238301
AbstractWe study by light microscopy a soft glass consisting of a compact arrangement of polydisperse multilamellar vesicles. We show that its slow and nonstationary dynamics results from the unavoidable small fluctuations of temperature, which induce intermittent local shear deformations in the sample, because of thermal expansion and contraction. Temperature-induced shear provokes both reversible and irreversible rearrangements whose amplitude decreases with time, leading to an exponential slowing down of the dynamics with sample age.
Source PubMed, pmid17280252
Other source [GID 680139] cond-mat/0603739
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