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Wakefield effects on three-dimensional dust-lattice modes

Published online by Cambridge University Press:  13 December 2013

B. Farokhi  and
A. Hameditabar
B. Farokhi*
Affiliation:
Department of Physics, Arak University, Arak, Iran (b-farokhi@araku.ac.ir)
A. Hameditabar
Affiliation:
Department of Physics, Arak University, Arak, Iran (b-farokhi@araku.ac.ir)
*
†Email address for correspondence: b-farokhi@araku.ac.ir
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Abstract

Dispersion relations of dust-lattice waves in three-dimensional body-centered cubic (bcc) and face-centered cubic (fcc) dusty plasma crystals are derived taking into account particle–wake interactions. Results show that resonance coupling between the longitudinal and out-of-plane transverse wave modes set in if the vertical confinement is below a certain critical value. The imaginary part of the wave frequency shows that the hybrid mode cannot propagate in the crystal.

Type
Papers
Information
Journal of Plasma Physics , Volume 80 , Issue 2 , April 2014 , pp. 225 - 234
Copyright
Copyright © Cambridge University Press 2013 

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