Abstract

The surface impedance for a metal placed in a magnetic field parallel to the sample surface is calculated for the three cases: a circular cylindrical Fermi surface and ERF perpendicular to B; a spherical Fermi surface and ERF perpendicular to B and ERF//B, respectively. The surface impedance is expressed in an exact form in terms of the roots of the dispersion relation for cyclotron waves of the type relevant to the field configuration considered. An approximate evaluation of the surface impedance and the field distribution in the metal is briefly considered and it is shown that the surface impedance may be written in terms of an average phase velocity for cyclotron waves.

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