Volume 112, Number 4, November 2015
|Number of page(s)||4|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||30 November 2015|
The Hall-diffusion–driven shear instability of a magnetized collisional dusty plasma
Department of Physics & Astronomy, Macquarie University - Sydney, NSW 2109, Australia
Received: 2 September 2015
Accepted: 9 November 2015
If the relative drift between the charged dust and magnetised electrons and ions which give rise to the Hall diffusion in a dusty plasma dominates the dynamics, the plasma may become diffusively unstable in the presence of shear flow. The growth rate of the diffusive instability is the geometric mean of the whistler and the shear frequencies. The role of the magnetic field is important in destabilising the waves as the growth rate of the instability is dependent on both the ambient magnetic field strength as well as on the dust charge.
PACS: 52.40.Kh – Plasma sheaths / 52.77.-j – Plasma applications
© EPLA, 2015
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