title: Microstructure and dynamics near an attractive colloidal glass transition.
abstract: The microstructure and dynamics of a colloidal system interacting via short-ranged interparticle potential is studied by ultra-small-angle x-ray scattering and x-ray photon correlation spectroscopy. A colloidal gas-liquid type transition is induced when the short-ranged attractive interactions attain sufficient magnitude. The development of liquidlike structure is preceded by a systematic transition in the particle dynamics from diffusive to constrained motion and then completely frozen behavior. This demonstrates the existence of a jamming transition induced by strong short-ranged attractive interactions even at low packing fractions.
authors.affiliation: European Synchrotron Radiation Facility, 38043 Grenoble, France.
authors.forename: D
authors.initials: D
authors.lastname: Pontoni
authors.forename: T
authors.initials: T
authors.lastname: Narayanan
authors.forename: J-M
authors.initials: JM
authors.lastname: Petit
authors.forename: G
authors.initials: G
authors.lastname: Grübel
authors.forename: D
authors.initials: D
authors.lastname: Beysens