A calculation of the Compton profiles of beryllium is presented. The wave functions are obtained from an ab initio calculation with the use of the pseudopotential approach within the local-density-functional approximation. The calculated anisotropic profiles are in excellent agreement with experiments. The directional profiles are also in good agreement except for a small discrepancy which can be improved by the inclusion of the effects of correlation in an approximate way.

• Received 4 April 1983

DOI:https://doi.org/10.1103/PhysRevB.28.1696