@misc{10481/67794,
year = {2017},
url = {http://hdl.handle.net/10481/67794},
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 externalmagnetic 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.},
organization = {This work was supported by Project No. FIS2013-41821-R
(Ministerio de Economía y Competitividad, Spain; cofunded
by ERDF, European Union). P.K. acknowledges financial
support of the French government, piloted by the National
Research Agency (ANR) in the framework of the project
Future Investments UCAJEDI, Ref. No. ANR-15-IDEX-01
(ImmunoMag and RheoGels). A.Z. acknowledges the Russian
Fund for Basic Research (Project Ref. 16-58-12003), as well
as the Program of the Russian Federation Ministry of Science
and Education (Project Ref. 3.1438.2017/4.6).},
title = {Kinetics of doublet formation in bicomponent magnetic suspensions: The role of the magnetic permeability anisotropy},
doi = {10.1103/PhysRevE.96.062604},
author = {Nogueras-Lara, Francisco and Rodríguez Arco, Laura and Guigo, N. and Sbirrazzuoli, N. and Zubarev, Andrey and Lacis, Sandris and Kuzhir, P. and López López, Modesto Torcuato},
}