Low-frequency waves and relaxation processes in semibounded and bounded plasma-like media

In this article, the frequency spectrum and relaxation processes for volume and surface waves are investigated in semibounded plasmas and thin films o f plasma-like media in the presence and absence of spatial dispersion. In d oing so, two models are considered: (1) The model with mirror reflection of charge carriers from the boundary surface of plasma medium; (2) The model of a thin plasma layer which is confined by a strong magnetic field. (C) 20 00 American Institute of Physics. [S1070-664X(00)00610-8].