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Waves in magnetic fluids with equilibrium and frozen-in magnetizations

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Abstract

It is shown that, in an ideal magnetic fluid with equilibrium magnetization, a single hydrodynamic mode is present. This case qualitatively differs from the other limiting case of an ideal magnetic fluid with frozen magnetization, in which three hydrodynamic modes propagate. The theoretical calculations are found to agree well with experimental data for the anisotropy of ultrasound in a water-based magnetic fluid in the frozen magnetization approximation.

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Authors and Affiliations

  1. Moscow State University of Instrument Engineering and Computer Science, ul. Stromynka 20, Moscow, 107996, Russia

    I. E. Ovchinnikov & V. V. Sokolov

Authors
  1. I. E. Ovchinnikov
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  2. V. V. Sokolov
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Correspondence to I. E. Ovchinnikov.

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Original Russian Text © I.E. Ovchinnikov, V.V. Sokolov, 2013, published in Akusticheskii Zhurnal, 2013, Vol. 59, No. 1, pp. 58–62.

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Ovchinnikov, I.E., Sokolov, V.V. Waves in magnetic fluids with equilibrium and frozen-in magnetizations. Acoust. Phys. 59, 51–55 (2013). https://doi.org/10.1134/S1063771012060115

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  • DOI: https://doi.org/10.1134/S1063771012060115

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