Ultrasound attenuation in ferrofluids

Mark Shliomis, Michael Mond, Konstantin Morozov

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


The absorption of acoustic energy by internal degrees of freedom of short chains is proposed as a new viable mechanism of ultrasound attenuation in ferrofluids. It is demonstrated that even though the volume fraction of the chains may be quite small, such an effect may reach the order of magnitude of viscous damping. In addition, by investigating the statistical properties of dimers in ferrofluids, it is shown that an applied magnetic field modifies the sound attenuation in a highly anisotropic manner. The proposed mechanism provides new insight into the fundamental issue of colloidal response, and, in particular, may lead to its utilization in novel experimental concepts.

Original languageEnglish
Article number074505
JournalPhysical Review Letters
Issue number7
StatePublished - 15 Aug 2008

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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