Inter-grain coupling and grain charge in dusty plasma Coulomb crystals
Journal Article
·
· AIP Conference Proceedings
- Department of Physics, University of California, Riverside, California 92521 (United States)
- IGPP, University of California, Riverside, California 92521 (United States)
- Department of Electrical and Computer Engineering, University of California-San Diego, La Jolla, California 92093 (United States)
We have studied the lattice structure and grain charge of dusty plasma Coulomb crystals formed in rectangular conductive grooves as a function of plasma temperature and density. The crystal appears to be made of mutually repulsive columns of grains confined by the walls of the groove. The columns are oriented along the direction of the electrode sheath electric field. A simple phenomenological model wherein the inter-grain spacing results from an attractive electric field induced dipole-dipole force balanced by a repulsive monopole Coulomb force is consistent with observed features of the Coulomb crystal.
- OSTI ID:
- 21202186
- Journal Information:
- AIP Conference Proceedings, Vol. 446, Issue 1; Conference: 7. workshop on the physics of dusty plasmas, Boulder, CO (United States), 6-9 Apr 1998; Other Information: DOI: 10.1063/1.56671; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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