FIELD AND CURRENT DISTRIBUTION IN SUPERCONDUCTING FILM UNDER PARTIAL FIELD PENETRATION

Using finite-element analysis in a self-consistent way with the self-f ield of the current considered for superconducting thin film, the held and current distributions under partial field penetration are calcula ted based on the field dependent critical current density function. Th e field penetrated depth is non-linear with the applied held. Due to t he limited resolution of the vibrating sample magnetometer (VSM), the full penetrated field measured by VSM may be much smaller than its act ual value.