Dust acoustic mode in inhomogeneous plasma
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A purely kinetic instability of the dust acoustic mode in inhomogeneous plasmas is discussed. In the presence of a magnetic field, electrons and ions may be magnetized while at the same time dust grains may remain un-magnetized. Although the dynamics of the light species is strongly affected by the magnetic field, the dust acoustic mode may still propagate in practically any direction. The inhomogeneity implies a source of free energy for an instability that develops through the diamagnetic drift effects of the magnetized species.
CitationVranjes, J. (2011). Dust acoustic mode in inhomogeneous plasma. , AIP Conference Proceedings, Vol. 1397, 405-406, DOI: 10.1063/1.3659865.