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Andreas Leschhorn, Manfred Lücke

Periodically Forced Ferrofluid Pendulum: Effect of Polydispersity

Keywords: Ferrofluid, Torsional Pendulum, Response Function

We investigate a torsional pendulum containing a ferrofluid that is forced periodically to undergo small-amplitude oscillations. A homogeneous magnetic field is applied perpendicular to the pendulum axis. We give an analytical formula for the ferrofluid-induced “selfenergy” in the pendulum’s dynamic response function for monodisperse as well as for polydisperse ferrofluids.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 220, 01/2006
Pages: 089 - 096

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