Theoretical Investigation of the Anisotropy of Beryllium by Polarized K‐Emission, APS, and Compton Profiles

Abstract

Abstract Starting from a pseudopotential calculation for metallic beryllium the K‐emission spectra of different polarizations, the Compton profiles for several directions, and the APS are calculated. Besides the shape of the emission spectra also the absolute values of the intensity are highly anisotropic due to the existence of localized charges along the hexagonal axis of Be. The calculated spectra agree well with a recently published measurement. The Compton profiles for three directions are calculated in momentum approximation. The comparison of the anisotropies obtained with those of several measurements and a LCAO calculation shows a good correlation.