Nonlinear high-frequency effects in metals at heating skin layer

Abstract

The influence of the wave self-magnetic field on a movement of carriers and high-frequency current is considered at conditions when a wave phase velocity in metal is smaller than the Fermi velocity. It is shown that the existence of electrical nonlinearity of magnetodynamic nature is possible. In other words the nonlinear corrections in material equations are caused by influence of a magnetic field on moving charge carriers. The character of influence of degree of diffuseness on impedance is considered. It is shown that as opposed to usual Reiter-Sondheimer approximation in a mode of nonlinear dynamic connection the high-frequency current at a surface of metal is different at mirror and diffuse reflection of charge carriers. Conditions at which the external magnetic field results to skin-electron heating are determined.