MATRIX DIRAC-FOCK-BREIT SCF CALCULATIONS ON HEAVY-ATOMS USING GEOMETRIC BASIS-SETS OF GAUSSIAN FUNCTIONS

Matrix Dirac-Fock-Breit self-consistent field calculations have been performed on heavy atoms up to Rn using large geometric basis sets of Gaussian-type functions. Results of the calculations on Yb, Hg, Pb and Rn are presented. For Hg, a number of Dirac-Fock-Breit calculations were performed in which Gaussian basis sets were systematically enlarged to demonstrate the effects of the basis-set size on the total Dirac-Fock and the Breit interaction energies.