The influence of electrons heating on the magnetoplasma surface waves propagation at the plasma-metal structure

The study of nonlinear effects in plasma-metal structures nowadays is of considerable fundamental and practical interest. This interest is due to the fact that such structures are often formed in gaseous plasmas and their study is necessary in connection with the problems of plasma confinement (limiter in tokamak), impurities (divertor) and probe measurements in plasma. They may also occur under plasma or laser processing of metals as well as under movement of artificial satellites in ionosphere. In such structures the existence of surface (located near the interface) waves (SW), propagating across the external magnetic field is possible. The phase velocity of the SW is usually much less compared with the light velocity and a behaviour of such waves becomes sufficiently nonlinear under relatively small amplitudes. Note that nonlinear properties of the SW considered, may be due to several nonlinear mechanisms. In our previous works the influence of nonlinearity, which is due to nonlinearity of the basic set of Maxwellian equations and quasihydrodynamic equations, on the SW propagation was studied. The aim of the present report is to study the influence of nonlinearity which is due to electrons heating in the high frequency SW field on magnetoplasma finite amplitude SW propagation at the plasma - metal structure. (author) 5 refs