%0 Journal Article
%T Probing shear-induced rearrangements in Fourier space. I. Dynamic light scattering
%+ Laboratoire Charles Coulomb (L2C)
%A Aime, Stefano
%A Cipelletti, Luca
%< avec comité de lecture
%Z L2C:19-003
%@ 1744-683X
%J Soft Matter
%I Royal Society of Chemistry
%V 15
%N 2
%P 200-212
%8 2019-01-14
%D 2019
%R 10.1039/c8sm01563e
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles
%X Understanding the microscopic origin of the rheological behavior of soft matter is a long-lastingendeavour. While early efforts concentrated mainly on the relationship between rheology and structure,current research focuses on the role of microscopic dynamics. We present in two companion papers athorough discussion of how Fourier space-based methods may be coupled to rheology to shed light onthe relationship between the microscopic dynamics and the mechanical response of soft systems. In thisfirst companion paper, we report a theoretical, numerical and experimental investigation of dynamiclight scattering coupled to rheology. While in ideal solids and simple viscous fluids the displacement fieldunder a shear deformation is purely affine, additional non-affine displacements arise in many situationsof great interest, for example in elastically heterogeneous materials or due to plastic rearrangements.We show how affine and non-affine displacements can be separately resolved by dynamic lightscattering, and discuss in detail the effect of several non-idealities in typical experiments.
%G English
%L hal-01982836
%U https://hal.science/hal-01982836
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ GDR_MFA
%~ UM-2015-2021