Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102049
Title: Kinetics of doublet formation in bicomponent magnetic suspensions: The role of the magnetic permeability anisotropy
Authors: Lopez-Lopez, M. T.
Nogueras-Lara, F.
Rodriguez-Arco, L.
Guigo, N.
Sbirrazzuoli, N.
Zubarev, A. Y.
Lacis, S.
Kuzhir, P.
Issue Date: 2017
Publisher: American Physical Society
Citation: Kinetics of doublet formation in bicomponent magnetic suspensions: The role of the magnetic permeability anisotropy / M. T. Lopez-Lopez, F. Nogueras-Lara, L. Rodriguez-Arco, et al. — DOI 10.1103/PhysRevE.96.062604 // Physical Review E. — 2017. — Vol. 96. — Iss. 6. — 062604.
Abstract: Micron-sized particles (microbeads) dispersed in a suspension of magnetic nanoparticles, i.e., ferrofluids, can be assembled into different types of structures upon application of an external magnetic field. This paper is devoted to theoretical modeling of a relative motion of a pair of microbeads (either soft ferromagnetic or diamagnetic) in the ferrofluid under the action of applied uniform magnetic field which induces magnetic moments in the microbeads making them attracting to each other. The model is based on a point-dipole approximation for the magnetic interactions between microbeads mediated by the ferrofluid; however, the ferrofluid is considered to possess an anisotropic magnetic permeability thanks to field-induced structuring of its nanoparticles. The model is tested against experimental results and shows generally better agreement with experiments than the model considering isotropic magnetic permeability of ferrofluids. The results could be useful for understanding kinetics of aggregation of microbeads suspended in a ferrofluid. From a broader perspective, the present study is believed to contribute to a general understanding of particle behaviors in anisotropic media. © 2017 American Physical Society.
Keywords: ANISOTROPIC MEDIA
ANISOTROPY
MAGNETIC ANISOTROPY
MAGNETIC FIELDS
MAGNETIC FLUIDS
MAGNETIC MOMENTS
MAGNETIC PERMEABILITY
MAGNETISM
NANOMAGNETICS
NANOPARTICLES
SUSPENSIONS (FLUIDS)
EXTERNAL MAGNETIC FIELD
MAGNETIC INTERACTIONS
MAGNETIC NANO-PARTICLES
MICRON-SIZED PARTICLES
PERMEABILITY ANISOTROPY
POINT-DIPOLE APPROXIMATION
THEORETICAL MODELING
UNIFORM MAGNETIC FIELDS
SUSPENSIONS (COMPONENTS)
URI: http://hdl.handle.net/10995/102049
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85038207757
PURE ID: 6215658
1ad6fab6-8b4a-402b-9324-fd32e73b9da8
ISSN: 24700045
DOI: 10.1103/PhysRevE.96.062604
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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