Physics
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..799..185c&link_type=abstract
NEW VISTAS IN DUSTY PLASMAS: Fourth International Conference on the Physics of Dusty Plasmas. AIP Conference Proceedings, Volum
Physics
1
Dusty Plasmas, Magnetic Field Effects, Rotation, Stability, Plasma Confinement, Particle Size, Dusty Or Complex Plasmas, Plasma Crystals, Magnetized Plasmas
Scientific paper
Rotation and stability of dust clusters with different numbers (2 to 12) of micron-sized particles levitated in a horizontal plane was studied experimentally in inductively coupled magnetised dusty plasma. It was found that magnetic field has an influence on the cluster radius and its configuration producing a change in the confinement potential profile in plasma. In the experiment, dust particles have been confined over a flat unbiased electrode using magnetic field only. It was found that the fluctuating motion of the particles was dominated by its azimuthal component which was 2-12 times larger than radial component. It was also observed that the number of particles in a cluster strongly influenced the cluster instability. The reason behind certain cluster structures being more unstable than others was likely to be due to their number of possible metastable states.
Brunner C.
Cheung M. H. F.
James B. W.
Samarian A. A.
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