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

我们的总体目标是优先计划之一：更好地了解利用界面不对称驱动的自旋相互作用的纳米结构系统中天空粒子的产生、破坏和外部操纵以及相关的拓扑自旋现象，并深入了解揭示真实空间中拓扑自旋现象的新功能的先进混合体系结构。我们建议的具体目标是分析含有磁性天子的超导/铁磁(S/F)异质结中各个天子和天子晶格的形成。在通常的情况下，Skyrmionics晶格的形成是由磁相互作用和自旋-轨道耦合决定的，而在多层S/F结构中，由于轨道和自旋极化效应对磁场的屏蔽，情况完全不同。我们的目标是对双层(S/F)和多层S/F结构的这些效应进行理论分析，重点是天空离子的性质及其对超导电性的反馈。例如，我们想要研究这些结构中的Skyrmion晶格在稳态和非稳态区域(运动孤子晶格)中的性质。我们的特别目标是研究在潜在的基于天电子学的设备中使用超导体带来的新功能。此外，我们还计划将我们的研究扩展到具有强自旋轨道耦合的多组分超导体的情况，这支持混合态的Skyrmionics解。

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.