Ferroplasmas: Magnetic Dust Dynamics in a Conducting Fluid

Abstract

We consider a dusty plasma, in which the dust particles have a magnetic dipole moment. A Hall-MHD type of model, generalized to account for the intrinsic magnetization, is derived. The model is shown to be energy conserving, and the energy density and flux is derived. The general dispersion relation is then derived, and we show that kinetic Alfvén waves exhibit an instability for a low temperature and high density plasma. We discuss the implication of our results.

6 pages, 1 figure

References in corpus (4)

• Dynamics of spin 1/2 quantum plasmas
• Spin magnetohydrodynamics
• Autoresonant control of the many-electron dynamics in nonparabolic quantum wells
• Ferromagnetic behavior in magnetized plasmas