Ferromagnetic-Superconducting Hybrid Systems

摘要

The interplay between superconductor (S) and ferromagnet (F) in hybrid structures consisting of S and F layers creates an exotic spin-triplet ordering in the vicinity of F/S boundaries, even though the S-layers are made of conventional BCS superconductors. We present experimental and theoretical studies of F/S/F trilayer hybrid systems, where the emergent spin-triplet correlations lead to the dependence of the superconducting transition temperature on the angle between the magnetization directions of the two ferromagnetic layers.