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Vortex dynamics in high-Tc superconducting films with arrays of antidots

Nucleation and annihilation of vortices at antidots as well as their guided motion between antidots are of the key issues in the current efforts to design methods for controlling the vortex manipulation in micropatterned thin films. An adaptive numerical approach has been developed on the basis of the time dependent Ginzburg-Landau equations in order to describe the generation and motion of vortices in YBCO films with antidots. Numerical analysis was performed of the distributions of the order parameter and the current density in superconducting films with different patterns of antidots (up to 32). The optimisation of the guided motion of vortices requires data on the specific distributions of the current density and the order parameter in samples with large number of antidots.