Abstract
The partial wave method, along with a central potential which includes the effects of static field, exchange, polarization, absorption and spin–orbit interaction, is employed to search the critical points for the elastic scattering of electrons from Mg atoms. A novel iterative procedure is developed to calculate the critical points. A pilot application is made for Mg atoms. The present investigation shows the existence of two critical point pairs (Ec1 = 15.4484 eV, θc1 = 56.930°) and (Ec2 = 75.6175 eV, θc2 = 104.261°) for the Mg atom. At critical energy Ec2 and scattering angles 104.175° and 104.325°, 99% spin polarization of scattered electrons is obtained. To the best of our knowledge, no theoretical or experimental determination of critical points for the Mg (Z = 12) atom have yet been published.
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