Inter-grain coupling and grain charge in dusty plasma Coulomb crystals

Details Inter-grain coupling and grain charge in dusty plasma Coulomb crystals Inter-grain coupling and grain charge in dusty plasma Coulomb crystals

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aipc..446..216s&link_type=abstract

Seventh workshop on the physics of dusty plasmas. AIP Conference Proceedings, Volume 446, pp. 216-229 (1998).

Other

Impurities In Plasmas, Phase Transitions: General Studies, Other Topics In Physics Of Plasmas And Electric Discharges

Scientific paper

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.

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