Kohn-Sham formulation allows to transform a system of interacting electrons in a static external potential to a system of non-interacting electrons in an effective potential called Kohn-Sham potential 𝑣 𝐾𝑆 (𝒓) 62 . Major benefit of using the Kohn-Sham scheme is that the Kohn-Sham equations are the set of single-particle equations which are easier to solve in comparison to previously coupled Schrodinger equations.