  We investigate the proximity effect in an s-wave superconductor/ferromagnetic
metal with a Rashba spin-orbit coupling/diffusive normal metal junction and an
s-wave superconductor/noncollinear magnetic metal/diffusive normal metal
junction. We show the generation of equal spin-triplet pairings in the
diffusive normal metal due to spin-flip scattering in the intermediate magnetic
regions. The emergence of the spin-triplet odd-frequency Cooper pairings can
generate a zero-energy peak in the quasiparticle density of states in the
diffusive normal metal.
