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Title: Magnetic Properties of Ferrofluid Emulsions: Model of Non-interacting Droplets
Authors: Ivanov, A. O.
Kuznetsova, O. B.
Subbotin, I. M.
Issue Date: 2011
Publisher: Latvijas Universitate
University of Latvia
Citation: Ivanov A. O. Magnetic Properties of Ferrofluid Emulsions: Model of Non-interacting Droplets / A. O. Ivanov, O. B. Kuznetsova, I. M. Subbotin. — DOI 10.2495/SC210421 // Magnetohydrodynamics. — 2011. — Vol. 47. — Iss. 2. — P. 129-134.
Abstract: Experimental study of the static magnetic properties of ferrofluid emulsions has demonstrated the nonmonotonic field dependence of the emulsion magnetic permeability. In a weak magnetic field, the emulsion permeability rapidly grows and reaches a maximum, and then it decreases slowly in stronger fields. We suggest a theoretical description of the effect based on the following idea. The weak field growth of the emulsion magnetic permeability is caused by the droplet elongation and the resulting reduction of demagnetizing field under the constant value of the ferrofluid magnetic susceptibility. Subsequent decrease of the emulsion magnetic permeability in a stronger magnetic field is explained by the decay of the ferrofluid magnetic susceptibility under an approximately constant degree of droplet elongation.
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 80052898024
ISSN: 0024-998X
DOI: 10.2495/SC210421
metadata.dc.description.sponsorship: We gratefully acknowledge the financial support from the DFG within the research training group RTG 1558 Nonequilibrium Collective Dynamics in Condensed Matter and Biological Systems, project B1.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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