Coulomb balls in Experiment and Simulation

Journal Article · Mon Oct 31 00:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2134663· OSTI ID:20726814

Block, D; Arp, O; Piel, A ^[1]; Melzer, A ^[2]

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1. IEAP, Christian-Albrechts-Universitaet zu Kiel, D-24098 Kiel (Germany)
2. Institut fuer Physik, Ernst-Moritz-Arndt Universitaet Greifswald, D-17489 Greifswald (Germany)

Recently, it was shown that it is possible to confine spherical dust clouds in a plasma. It was found that these dust clouds have a crystalline structure which differs notably from the well known fcc, bcc and hcp order in extended crystalline systems. The experiments show that the particles arrange in nested shells with hexagonal order on individual shells. The high transparency and the rather slow time scales of Coulomb balls allow to observe individual particles with video microscopy techniques and therefore to determine the structural properties of Coulomb balls with high accuracy. This contribution presents a comparison of experimental results and MD-Simulations.

• OSTI ID: 20726814
• Journal Information: AIP Conference Proceedings, Vol. 799, Issue 1; Conference: 4. international conference on the physics of dusty plasmas, Orleans (France), 13-17 Jun 2005; Other Information: DOI: 10.1063/1.2134663; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCURACY
BCC LATTICES
COMPARATIVE EVALUATIONS
DUSTS
FCC LATTICES
HCP LATTICES
MICROSCOPY
MOLECULAR DYNAMICS METHOD
OPACITY
PARTICLES
PLASMA
PLASMA DIAGNOSTICS
PLASMA SIMULATION
SPHERICAL CONFIGURATION