Time resolved nanosecond vortex dynamics in high Tc superconducting films

摘要

We report on the observation of the rearrangement of vortices in the ns timescale following a fast magnetic field variation due to selective local heatingof a high Tc superconducting film. Detailed simulations describing the measuredphotoinduced voltage signals along the film lead to a better understanding ofvortex dynamics in fast regimes, where mean vortex velocities reach 10000 m/s