Calculations on polarization properties of alkali metal atoms using Dirac—Fock plus core polarization method

Abstract

A semi-empirical atomic structure model method is developed in the framework of a relativistic case. This method starts from Dirac—Fock calculations using B-spline basis set. The core-valence electron correction is then treated in a semi-empirical core polarization potential. As an application, the polarization properties of alkali metal atoms, including the static polarizabilities and long-range two-body dispersion coefficients, have been calculated. Our results are in good agreement with the results obtained from ab initio relativistic many-body perturbation method and the available experimental measurements.