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Updated: Jun 21, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
Beam-plasma instabilities in a 2D Yukawa lattice
S Kyrkos1, G J Kalman, M Rosenberg
1Department of Chemistry & Physics, Le Moyne College, Syracuse, New York 13214, USA.
Abstract:
We consider a 2D Yukawa lattice of grains, with a beam of other charged grains moving in the lattice plane. In contrast to Vlasov plasmas, where the electrostatic instability excited by the beam is only longitudinal, here both longitudinal and transverse instabilities of the lattice phonons can develop. We determine and compare the transverse and longitudinal growth rates. The growth rate spectrum in wave number space exhibits remarkable gaps where no instability can develop. Depending on the system parameters, the transverse instability can be selectively excited.
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