  We study the temperature dependence of the drift velocity of single-domain
ferromagnetic particles induced by the Magnus force in a dilute suspension. A
set of stochastic equations describing the translational and rotational
dynamics of particles is derived, and the particle drift velocity that depends
on components of the average particle magnetization is introduced. The
Fokker-Planck equation for the probability density of magnetization
orientations is solved analytically in the limit of strong thermal fluctuations
for both the planar rotor and general models. Using these solutions, we
calculate the drift velocity and show that the out-of-plane fluctuations of
magnetization, which are not accounted for in the planar rotor model, play an
important role. In the general case of arbitrary fluctuations, we investigate
the temperature dependence of the drift velocity by numerically simulating a
set of effective stochastic differential equations for the magnetization
dynamics.

Soft Condensed Matter