Approximate Atomic Calculations and Stability of Negative Ions with a Modified Thomas-Fermi-Dirac Model

摘要

By means of an improved modified Thomas-Fermi-Dirac approach we obtain fair shell-averaged total energies of atoms and ions.In particular,stable single-charged negative ions can be described with this method.In addition,the possibility of developing hybrid schemes with this method coupled to quantum mechanical calculations for the evaluation of quantities such as ionization potentials is also investigated.