title: Suspensions of repulsive colloidal particles near the glass transition: Time and frequency domain descriptions.
abstract: We study the relaxation of both spontaneous and shear-induced fluctuations in suspensions of charged-stabilized colloidal particles near the glass transition by dynamic light scattering and rheology. Both observations are here understood in terms of a common structural relaxation process under a hard-sphere mode-coupling formalism. For ergodic systems, we show that the descriptions of the relaxation dynamics in time and frequency domains are governed by a common set of dynamic parameters. It is further shown that the microscopic ergodicity break-up induces the emergence of the macroscopic glass elasticity.
authors.affiliation: Departamento de Física Aplicada, Universidad de Granada, Spain. sandalo@ugr.es
authors.forename: Sándalo
authors.initials: S
authors.lastname: Roldán-Vargas
authors.forename: Juan
authors.initials: J
authors.lastname: de Vicente
authors.forename: Ramon
authors.initials: R
authors.lastname: Barnadas-Rodríguez
authors.forename: Manuel
authors.initials: M
authors.lastname: Quesada-Pérez
authors.forename: Joan
authors.initials: J
authors.lastname: Estelrich
authors.forename: José
authors.initials: J
authors.lastname: Callejas-Fernández
mesh_terms: D003102:Colloids / Q000737:chemistry*; D003198:Computer Simulation; D055119:Elastic Modulus; D005898:Glass / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D010316:Particle Size; D044367:Phase Transition
chemical_list: D003102:Colloids