Calculation of Cross Sections for Elastic Scattering of Electrons at Intermediate Energies by a Magnesium Atom

We have obtained differential and integral cross sections for elastic scattering of electrons by magnesium atom at 10 - 100 eV using a complex, local, energy-dependent, spherically-symmetric optical potential incorporating a modified semiclassical exchange potential. The results have been compared with available theoretical and experimental results. The present results are in good agreement with recent experimental results at electron impact energies E >= 40 eV and are in qualitative agreement at lower energies. The results indicate the reliability of the modified exchange potential at higher energies in the intermediate energy range.