Compton Profile of Beryllium

Abstract

An experimental and theoretical analysis of the Compton profile of beryllium is presented. The measurements on single-crystal beryllium are performed with use of synchrotron radiation (10-keV x rays). The theoretical calculation employs local density-functional pseudopotentials. The agreement between the one-electron calculation and the measured spectra is distinctly superior to previous attempts. A small directionally independent difference remains. This difference is substantially reduced by incorporating correlation effects within the homogeneous approximation.