title: Adsorption and diffusion in a one-dimensional potential well.
abstract: We investigate the adsorption and diffusion of colloidal particles at an interface containing a one-dimensional potential well. It is observed how the adsorption kinetics onto the wall is altered with time, and one observes the formation of a particle chain. We find that the time it takes for a bead to penetrate into the chain depends strongly on the particle density, and beyond a critical value this time diverges. We also study diffusion within the well, and find that at low particle densities the short time behavior is governed by normal Fickian diffusion.
authors.affiliation: Max Planck Institute of Colloids and Interfaces, D-14424, Potsdam, Germany.
authors.forename: L E
authors.initials: LE
authors.lastname: Helseth
authors.forename: H Z
authors.initials: HZ
authors.lastname: Wen
authors.forename: T M
authors.initials: TM
authors.lastname: Fischer
authors.forename: T H
authors.initials: TH
authors.lastname: Johansen