Shukla, P.K. (2009) Instability of short wavelength electrostatic electron-cyclotron modes in the presence of an ion density ripple in plasmas. Physica Scripta, 80 (3). 038201. ISSN 0031-8949Full text not available in this repository. (Request a copy from the Strathclyde author)
It is shown that short wavelength (in comparison with the ion thermal gyroradius), high-frequency (HF) electrostatic electron-cyclotron (EEC) modes can be excited by the pre-existing ion density ripple across the external magnetic field in a dusty magnetoplasma. For this purpose, we use the Boltzmann distributed ion density perturbation, together with the electron continuity and momentum equations, and derive the standard Mathieu equation. The latter admits unstable solutions, demonstrating that the short wavelength HF-EEC-like modes in dusty magnetoplasmas can be driven due to the free energy in the ion density ripple.
|Keywords:||intense bursts, harmonic-waves, geotail, Plasma physics. Ionized gases, Atomic and Molecular Physics, and Optics, Mathematical Physics, Condensed Matter Physics|
|Subjects:||Science > Physics > Plasma physics. Ionized gases|
|Department:||Faculty of Science > Physics|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||10 Jun 2010 10:51|
|Last modified:||27 Apr 2016 15:15|