  Magnetic Compton profiles (MCPs) of Ni and Fe along [111] direction have been
calculated using a combined Density Functional and many-body theory approach.
At the level of the local spin density approximation the theoretical MCPs does
not describe correctly the experimental results around the zero momentum
transfer. In this work we demonstrate that inclusion of electronic correlations
as captured by Dynamical Mean Field Theory (DMFT) improves significantly the
agreement between the theoretical and the experimental MCPs. In particular, an
energy decomposition of Ni MCPs gives indication of spin polarization and
intrinsic nature of Ni 6 eV satellite, a genuine many-body feature.
