Current distribution simulation for superconducting multi-layered structures

The software package 3D-MLSI is developed, which allows us to calculate the current distribution and to extract inductances from multi-layered high-T_c and low-T_c superconducting circuits. Both kinetic and magnetic inductances as well as the three-dimensional distribution of the magnetic field are taken into account. We discuss the numerical approach used in 3D-MLSI and some new features such as visualization of sheet currents and analysis of circuits with holes. As an example, we present a simulation of a high-T_c double-layer transformer.