title: Multiple glassy states in a simple model system.
abstract: Experiments, theory, and simulation were used to study glass formation in a simple model system composed of hard spheres with short-range attraction ("sticky hard spheres"). The experiments, using well-characterized colloids, revealed a reentrant glass transition line. Mode-coupling theory calculations and molecular dynamics simulations suggest that the reentrance is due to the existence of two qualitatively different glassy states: one dominated by repulsion (with structural arrest due to caging) and the other by attraction (with structural arrest due to bonding). This picture is consistent with a study of the particle dynamics in the colloid using dynamic light scattering.
authors.affiliation: Department of Physics and Astronomy, The University of Edinburgh, Mayfield Road, Edinburgh EH9 3JZ, UK.
authors.forename: K N
authors.initials: KN
authors.lastname: Pham
authors.forename: A M
authors.initials: AM
authors.lastname: Puertas
authors.forename: J
authors.initials: J
authors.lastname: Bergenholtz
authors.forename: S U
authors.initials: SU
authors.lastname: Egelhaaf
authors.forename: A
authors.initials: A
authors.lastname: Moussaïd
authors.forename: P N
authors.initials: PN
authors.lastname: Pusey
authors.forename: A B
authors.initials: AB
authors.lastname: Schofield
authors.forename: M E
authors.initials: ME
authors.lastname: Cates
authors.forename: M
authors.initials: M
authors.lastname: Fuchs
authors.forename: W C K
authors.initials: WC
authors.lastname: Poon