J. Phys. IV France 10 (2000) Pr5-175-Pr5-178
Nonlinear current in high electric fieldsK. Morawetz1, 2
1 LPC-ISMRA, boulevard du Maréchal Juin, 14050 Caen, France, and GANIL, boulevard Becquerel, 14076 Caen Cedex 5, France
2 Fachbereich Physik, University of Rostock, 18055 Rostock, Germany
A plasma under the influence of strong electric field shows a nonlinear current which is lowered by the relaxation effect describing the influence of screening on the motion of particles. While this is known as Debye-Onsager relaxation effect in hydrodynamical approximation, the kinetic theory allows to consider different scenarios. Approximations are discussed which reproduce the hydrodynamical result as best as possible.
© EDP Sciences 2000