  We present a minimal one-dimensional model of collective spin excitations in
itinerant ferromagnetic superlattices within the regime of parabolic
spin-carrier dispersion. We discuss the cases of weakly and strongly modulated
magnetic profiles finding evidences of antiferromagnetic correlations for
long-wave magnons (especially significant in layered systems), with an insight
into the ground state properties. In addition, the presence of local minima in
the magnonic dispersion suggests the possibility of (thermal) excitation of
spin waves with a relatively well controlled wave length. Some of these
features could be experimentally tested in DMS superlattices based on thin
doped magnetic layers, acting as natural interfaces between (spin)electronic
and magnonic degrees of freedom.
