Sound damping in ferrofluids: Magnetically enhanced compressional viscosity

Details Sound damping in ferrofluids: Magnetically enhanced compressional viscosity Sound damping in ferrofluids: Magnetically enhanced compressional viscosity

2002-11-14

arxiv.org/abs/cond-mat/0211297v1

Physics

Condensed Matter

Soft Condensed Matter

5 pages

Scientific paper

10.1103/PhysRevE.67.031201

The damping of sound waves in magnetized ferrofluids is investigated and
shown to be considerably higher than in the non-magnetized case. This fact may
be interpreted as a field-enhanced, effective compressional viscosity -- in
analogy to the ubiquitous field-enhanced shear viscosity that is known to be
the reason for many unusual behavior of ferrofluids under shear.

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