London theory is used to calculate the magnetic levitation force acting on the magnetic point dipole placed above the type-II superconducting thin film with a circular defect. The condition of the position of point dipole to create the first vortex in the thin film is found for b ≪ ^. The difference of the lateral magnetic force ΔFr acting on the point dipole between with and without a single vortex created in the thin film is also derived and used to estimate the force to overcome the pinning force of the vertex due to the circular defect.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)