Frequency Dependence of the Anomalous Skin Effect in High-Purity Copper

Abstract

A new technique for anomalous skin-effect studies is described. At low temperatures (∼4°K) it measures both surface reactance and surface resistance over a wide band of frequencies extending to below 100 cps. For the transition region from classical to anomalous behavior, experimental results on high-purity copper show excellent agreement with theory, assuming diffuse scattering of electrons at the metallic surface. A new numerical table of theoretical values is included.