Proximity-induced effects and novel functionalities in superconducting/ferromagnetic heterostructures with magnetic skyrmions

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Our overall goal is the one of the Priority Programme: to understand better the creation, destruction and external manipulation of skyrmions and related topological spin phenomena in nano-structured systems exploiting interface asymmetry driven spin interactions and to get insights in advanced hybrid architectures revealing new functionalities of topological spin phenomena in real space. The specific objective of our proposal is to analyze the formation of the individual skyrmions and skyrmionic lattices in the superconducting/ferromagnetic (S/F) heterostructures containing magnetic skyrmions. In contrast to the usual case, where the formation of the skyrmionics lattices is determined by the magnetic interactions and spin-orbit coupling, the situation in the multilayered S/F structures is completely different due to screening of magnetic field by both orbital and spin polarization effects. Our goal is to analyze these effects theoretically for bilayer (S/F) and multilayered S/F structures with the main emphasis on the properties of the skyrmions and their feedback on superconductivity. We want to investigate, for example, the properties of a skyrmion lattice in these structures both in a stationary and non-stationary regime (moving soliton lattice). Our particular objective is to investigate the new functionality brought about by using superconductors in potential skyrmionics-based devices. Furthermore, we also plan to extend our study to the case of multicomponent superconductors with strong spin-orbit coupling, which supports skyrmionics solutions in the mixed state.