Abstract：
:In quenched disordered out-of-equilibrium many-body colloidal systems, there are important distinctions between the glass transition, which is related to the onset of nonergodicity and loss of low-frequency relaxations caused by crowding, and the jamming transition, which is related to the dramatic increase in elasticity of the system caused by the deformation of constituent objects. For softer repulsive interaction potentials, these two transitions become increasingly smeared together, so measuring a clear distinction between where the glass ends and where jamming begins becomes very difficult or even impossible. Here, we investigate droplet dynamics in concentrated silicone oil-in-water nanoemulsions using light scattering. For zero or low NaCl electrolyte concentrations, interfacial repulsions are soft and longer in range, this transition sets in at lower concentrations, and the glass and the jamming regimes are smeared. However, at higher electrolyte concentrations the interactions are stiffer, and the characteristics of the glass-jamming transition resemble more closely the situation of disordered elastic spheres having sharp interfaces, so the glass and jamming regimes can be distinguished more clearly.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Braibanti M,Kim HS,Şenbil N,Pagenkopp MJ,Mason TG,Scheffold Fdoi
10.1038/s41598-017-13584-wsubject
Has Abstractpub_date
2017-11-08 00:00:00pages
13879issue
1issn
2045-2322pii
10.1038/s41598-017-13584-wjournal_volume
7pub_type
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