title: Quantitatively mimicking wet colloidal suspensions with dry granular media.
abstract: Athermal two-dimensional granular systems are exposed to external mechanical noise leading to Brownian-like motion. Using tunable repulsive interparticle interaction, it is shown that the same microstructure as that observed in colloidal suspensions can be quantitatively recovered at a macroscopic scale. To that end, experiments on granular and colloidal systems made up of magnetized particles as well as computer simulations are performed and compared. Excellent agreement throughout the range of the magnetic coupling parameter is found for the pair distribution as well as the bond-orientational correlation functions. This finding opens new ways to efficiently and very conveniently explore phase transitions, crystallization, nucleation, etc in confined geometries.
authors.affiliation: Laboratoire de Chimie et Physique - Approche Multi-Echelle des Milieux Complexes (LCP - A2MC) Institut de Chimie, Physique et Matériaux (ICPM), Université de Lorraine, 1 Bd. Arago, 57070 Metz, France.
authors.forename: René
authors.initials: R
authors.lastname: Messina
authors.affiliation: Laboratoire de Chimie et Physique - Approche Multi-Echelle des Milieux Complexes (LCP - A2MC) Institut de Chimie, Physique et Matériaux (ICPM), Université de Lorraine, 1 Bd. Arago, 57070 Metz, France.
authors.forename: Sarah
authors.initials: S
authors.lastname: Aljawhari
authors.affiliation: Laboratoire de Chimie et Physique - Approche Multi-Echelle des Milieux Complexes (LCP - A2MC) Institut de Chimie, Physique et Matériaux (ICPM), Université de Lorraine, 1 Bd. Arago, 57070 Metz, France.
authors.forename: Lydiane
authors.initials: L
authors.lastname: Bécu
authors.affiliation: GRASP, Physics Department, University of Liège, B-4000 Liège, Belgium.
authors.forename: Julien
authors.initials: J
authors.lastname: Schockmel
authors.affiliation: GRASP, Physics Department, University of Liège, B-4000 Liège, Belgium.
authors.forename: Geoffroy
authors.initials: G
authors.lastname: Lumay
authors.affiliation: GRASP, Physics Department, University of Liège, B-4000 Liège, Belgium.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Vandewalle