title: Time scaling regimes in aggregation of magnetic dipolar particles: scattering dichroism results.
abstract: We report experimental results on the aggregation kinetics in magnetorheological fluids subject to a constant uniaxial magnetic field using the technique of scattering dichroism. We show that the number of aggregated particles displays a long-time power-law dependence with exponents that correspond to two different aggregation regimes. These regimes coincide with 3D and 1D-like aggregation. We also derive the values of both time exponents for the number of aggregated particles.
authors.affiliation: Departamento Física Fundamental, UNED, Senda del Rey 9, Madrid 28040, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Melle
authors.forename: M A
authors.initials: MA
authors.lastname: Rubio
authors.forename: G G
authors.initials: GG
authors.lastname: Fuller