title: Power losses in a suspension of magnetic dipoles under a rotating field.
abstract: Energy absorption due to viscous friction in a dilute suspension of single-domain ferromagnetic particles subjected to a rotating field is considered. The problem is treated in the framework of kinetic approach. The behavior of specific loss power (SLP) as a function of the field amplitude and frequency is studied. It is shown that for either of these parameters (while the other is kept constant) SLP first grows quadratically and then saturates. The cases of a rotating field and oscillating fields are compared, and the essential differences are revealed. The results obtained enable one to assess the allowable or optimal field parameters for a given magnetic suspension intended for rotational magneto-inductive heating.
authors.affiliation: Institute of Continuous Media Mechanics, Ural Branch of Russian Academy of Sciences, Perm RU-614013, Russia.
authors.forename: Yu L
authors.initials: YL
authors.lastname: Raikher
authors.forename: V I
authors.initials: VI
authors.lastname: Stepanov