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 (9)

• Dynamics of spin 1/2 quantum plasmas
• Spin magnetohydrodynamics
• Modified Zakharov equations for plasmas with a quantum correction
• Quantum plasma effects in the classical regime
• Autoresonant control of the many-electron dynamics in nonparabolic quantum wells
• Effects of the $g$-factor in semi-classical kinetic plasma theory
• Ferromagnetic behavior in magnetized plasmas
• Nonlinear interactions between kinetic Alfvén and ion-sound waves
• Magnetization and susceptibility of ferrofluids

Cited by in corpus (7)

• From extended phase space dynamics to fluid theory
• Ion sound and dust acoustic waves at finite size of plasma particles
• Spin induced nonlinearities in the electron MHD regime
• Orbital Ferromagnetism and Quantum Collapse in Stellar Plasmas
• Quantum collapse in ground-state Fermi-Dirac-Landau plasmas
• Exact Nonlinear Excitations in Double-Degenerate Plasmas
• Orbital Ferromagnetism and the Chandrasekhar Mass-Limit