Magnetism in Ferromagnetic-Superconducting Layered Structures

The review presents the results of studies by neutrons of the magnetism phenomena in ferromagnetic-superconducting inhomogeneous structures carried out by the authors over fifteen years. The presence of superparamagnetic clusters, ferromagnetic domains, and superconducting vortices in real inhomogeneous layered structures leads to new magnetic phenomena. Reflectometry of polarized neutrons, being a powerful method for studying the spatial distribution of magnetization on a spatial scale from fractions of nanometers to tens of microns, makes it possible to study the whole spectrum of magnetic phenomena that occur in ferromagnetic-superconducting structures.