Generation of electric and diffusion currents (magnetic fields) in arbitrarily moving media by electromagnetic radiation
Abstract
An arbitrarily moving medium (e.g., a plasma) under the influence of an electromagnetic and gravitational field is considered. After solving the equation of motion for the charged particles by using a special approximation technique, expressions are calculated for the electric current density and the diffusion current density. By this procedure explicit formulas are found for the atomistic material coefficients. Of particular interest is the generation of an electric current (i.e., also a magnetic field) by the Poynting vector. The corresponding material coefficients show a characteristic frequency dependence. Numerical estimates exhibit an interesting order of magnitude of the expected effects.
 Publication:

Plasma Physics
 Pub Date:
 September 1977
 DOI:
 10.1088/00321028/19/9/001
 Bibcode:
 1977PlPh...19..799S
 Keywords:

 Electric Current;
 Gravitational Effects;
 Magnetic Fields;
 Magnetohydrodynamic Flow;
 Particle Diffusion;
 PlasmaElectromagnetic Interaction;
 Classical Mechanics;
 Current Density;
 Equations Of Motion;
 Frequency Response;
 Poynting Theorem;
 Plasma Physics