%0 Journal Article
%T Origin of the slow dynamics and the aging of a soft glass
%+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN)
%A Mazoyer, Sylvain
%A Cipelletti, Luca
%A Ramos, Laurence
%Z published in PRL 97, 238301, 2006
%< avec comité de lecture
%@ 0031-9007
%J Physical Review Letters
%I American Physical Society
%V 97
%P 238301
%8 2006
%D 2006
%Z cond-mat/0603739
%K 82.70.-y
%K 61.20.Lc
%K 61.43.-j
%K 62.20.Fe
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles
%X We study by light microscopy a soft glass consisting of a compact arrangement of polydisperse elastic spheres. We show that its slow and non-stationary dynamics results from the unavoidable small fluctuations of temperature, which induce intermittent local mechanical shear 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.
%G English
%2 https://hal.science/hal-00021876v2/document
%2 https://hal.science/hal-00021876v2/file/LQ10799_Revised_26July06.pdf
%L hal-00021876
%U https://hal.science/hal-00021876
%~ CNRS
%~ UNIV-MONTP2
%~ LCVN
%~ UNIV-MONTPELLIER
%~ UM1-UM2