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Nonlinear response of a concentrated ferrofluid to a low-frequency magnetic field

A. A. Kuznetsov - A. V. Lebedev - A. F. Pshenichnikov

Institute of Continuous Media Mechanics of the Ural Branch, RAS, 1 Ac.~Korolev str., 614013 Perm, Russia

Magnetic response of a concentrated polydisperse ferrofluid to a strong linearly polarized applied field is investigated both experimentally and theoretically. It is shown that in a wide range of particle concentrations and field amplitudes the second-order modified mean-field theory by Ivanov and Kuznetsova [2] well describes the experimentally observed magnetization spectra if the field frequency is low enough and internal relaxation processes in ferrofluid can be neglected. Tables 2, Figs 3, Refs 9.

Magnetohydrodynamics 54, No. 1/2, 73-78, 2018 [PDF, 0.32 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X