  The total and magnetically resolved Compton profiles are analyzed within the
combined density functional and dynamical mean field theory for the transition
metal elements Fe and Ni. A rather good agreement between the measured and
computed magnetic Compton profiles (MCPs) of Fe and Ni is obtained with the
standard Local Spin Density Approximation (LSDA). By including local but
dynamic many-body correlations captured by Dynamical Mean Field Theory (DMFT),
the calculated magnetic Compton profile is further improved when compared with
experiment. The second moment of the difference of the total Compton profiles
between LSDA and DMFT, along the same momentum direction, has been used to
discuss the strength of electronic correlations in Fe and Ni.
