Coexistence of Superconductivity and Ferromagnetism in the Nb(500 Å)/Fe(39 Å)/(Si(34 Å)/Mo(34 Å)) 40 /Si Nanostructure

The results of polarized neutron reflectometry investigations of the magnetic state of the Nb(500 A) superconductor-57Fe(39 A) ferromagnet-Si(34 A)/Mo(34 A)]40 superconductor nanostructure in the temperature range 2–60 K in the magnetic field with a strength of 0.5 kOe are presented. A decrease in magnetization in an iron layer for the transition of Nb(500 A) and [Si(34 A)/Mo(34 A)]40 layers to the superconducting state has been found.