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

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 so-called “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.