Equilibrium chain dynamics in magnetic fluids

Dilute ferrofluid dispersions with marginal stability (strong dipolar interactions) should contain an equilibrium population of dipolar chains. We present dynamic light scattering data for such dispersion in the wave-vector range of 3–30 μm −1. The data show a bimodal structure, consisting of a norm...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 252; no. 1-3; pp. 238 - 240
Main Author Licinio, P
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 01.11.2002
Elsevier Science
Subjects
Aggregation
Chemistry
Colloidal state and disperse state
Diffusion—Brownian
Exact sciences and technology
General and physical chemistry
Light scattering
Magnetic fluids
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Aggregation
Diffusion—Brownian
Light scattering
Magnetic fluids
Monte Carlo method
Diffusion-Brownian
Particle cluster
Particle motion
Strong interaction
Magnetic fluid
Experimental study
Brownian motion
Dipolar interaction
Dynamic measurement
Colloidal suspension
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Summary:Dilute ferrofluid dispersions with marginal stability (strong dipolar interactions) should contain an equilibrium population of dipolar chains. We present dynamic light scattering data for such dispersion in the wave-vector range of 3–30 μm −1. The data show a bimodal structure, consisting of a normal diffusion mode, compatible with single particle size and an anomalous diffusion mode, compatible with polymer behavior.
ISSN:0304-8853
DOI:10.1016/S0304-8853(02)00658-3