Journal article
Plasma Crystal: Coulomb Crystallization in a Dusty Plasma
Physical review letters, Vol.73(5), pp.652-655
08/1994
DOI: 10.1103/PhysRevLett.73.652
PMID: 10057503
Abstract
A macroscopic Coulomb crystal of solid particles in a plasma has been observed. Images of a cloud of 7−μm "dust" particles, which are charged and levitated in a weakly ionized argon plasma, reveal a hexagonal crystal structure. The crystal is visible to the unaided eye. The particles are cooled by neutral gas to 310 K, and their charge is >9800e, corresponding to a Coulomb coupling parameter Γ>20 700. For such a large Γ value, strongly coupled plasma theory predicts that the particles should organize in a Coulomb solid, in agreement with our observations.
Details
- Title: Subtitle
- Plasma Crystal: Coulomb Crystallization in a Dusty Plasma
- Creators
- H Thomas - Max Planck SocietyG. E Morfill - Max Planck SocietyV Demmel - Max Planck SocietyJ Goree - University of IowaB Feuerbacher - DLR, Institut für Raumsimulation, 51140 Köln, GermanyD Möhlmann - DLR, Institut für Raumsimulation, 51140 Köln, Germany
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.73(5), pp.652-655
- DOI
- 10.1103/PhysRevLett.73.652
- PMID
- 10057503
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 08/1994
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199768102771
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