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Magnetic field dependence of the normal mode spectrum of a planar complex plasma cluster

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4 Author(s)
Minghui Kong ; Dept. Natuurkunde, Univ. Antwerpen, Belgium ; W. P. Ferreira ; B. Partoens ; F. M. Peeters

The magnetic field dependence of the normal mode spectra of two-dimensional finite clusters of complex plasmas which are confined by an external harmonic potential is presented. The dependence of the normal mode spectrum as a function of a perpendicular magnetic field is discussed. The nature of the eigenmodes is investigated and the corresponding divergence and rotor were calculated which describe the "shear-like" and "compression-like" modes, respectively. It is shown that the "shear-like" character of the modes is increased due to the presence of the magnetic field.

Published in:

IEEE Transactions on Plasma Science  (Volume:32 ,  Issue: 2 )