Two-Dimensional Model for Induction Current Distribution in a Superconducting Film

Abstract

We present a simple model for calculating the distribution of the currents induced in a superconducting film by a local alternating magnetic field of a measuring coil. The model takes into account both radial and thickness nonuniform current distribution. The spatial distribution of the peak values of the current density in the sample is obtained, and the spectral composition of the response signal is considered depending on the amplitude of the drive current. The model response is compared with the experimental data.