  The magnetization in a superconductor induced due to the inverse proximity
effect is investigated in hybrid bilayers containing a superconductor and a
ferromagnetic insulator or a strongly spin-polarized ferromagnetic metal. The
study is performed within a quasiclassical Green function framework, wherein
Usadel equations are solved with boundary conditions appropriate for strongly
spin-polarized ferromagnetic materials. A comparison with recent experimental
data is presented. The singlet to triplet conversion of the superconducting
correlations as a result of the proximity effect with a ferromagnet is studied.
