  The penetration of the magnetic field of an infinitesimal magnetic dipole
into a bilayered type-II superconductor/soft-magnet heterostructure is studied
on the basis of the classical London approach. The critical values of the
dipole moment for the first appearance of a single magnetic vortex and,
respectively, a magnetic vortex-antivortex pair in the superconductor
constituent are obtained, when the magnetic dipole faces the superconductor or
the soft-magnet constituent. This reveals that the soft-magnet constituent
inhibits penetration of vortices into the superconductor constituent, when the
dipole faces the soft-magnet constituent.
