Electronic International Standard Serial Number (EISSN)
2532-5655
abstract
London and Maxwell equations are used in order to derive an exact and universal expression for the force and torque between a magnetic field (eventually a magnet) and a superconductor. This expression is useful for any shape and size of both magnet and superconductor and is suitable for finite elements calculations in the static limit. Furthermore, the equivalence of our general purpose expression with the well-known method of images is demonstrated for the case of a semi-infinite plane superconductor.