Structure and magnetic properties of mono- and bi-dispersed ferrofluids as revealed by simulations
نویسندگان
چکیده
Using a Langevin molecular dynamics simulation, we show that the magnetic properties of a monoand bi-dispersed ferrofluid system depend on the volume fraction and the dipolar coupling parameter. For the bi-dispersed system, most of the chains are formed by the large particles, but the aggregation behavior of the large particles is hindered by the presence of the small particles, which are predominantly attached to the end of the particle chain. To further elucidate the microscopic fluid structure, anisotropic structure factors are calculated. r 2004 Elsevier B.V. All rights reserved. PACS: 82.70.Dd; 61.20.Ja; 75.50.Mm; 82.20.Wt
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