How experimentally to detect a solitary superconductivity in dirty ferromagnet-superconductor trilayers?

Abstract

We theoretically study the proximity effect in the thin-film layered ferromagnet (F) -superconductor (S) heterostructures in F 1 F 2 S design. We consider the boundary value problem for the Usadel-like equations in the case of socalled "dirty" limit. The "latent" superconducting pairing interaction in F layers taken into account. The focus is on the recipe of experimental preparation the state with so-called solitary superconductivity. We also propose and discuss the model of the superconducting spin valve based on F 1 F 2 S trilayers in solitary superconductivity regime.