ELECTRON MOMENTUM DENSITY DISTRIBUTION IN IRIDIUM BY COMPTON-SCATTERING TECHNIQUE

The isotropic Compton profile of iridium, measured using 59.54keV gamm a-rays, is reported in this paper. The results are compared with the t heoretical Compton profiles from APW method with and without incorpora ting electron correlation effects. It is seen that correlation effects improve the agreement between the experiment and theory. Comparison w ith the renormalized-free-atom (RFA) model calculations has also been made. Behaviour of d-band electrons in Ir and some other 5d transition metals is discussed in terms of broadening in their Compton profiles.