ELECTRONIC POLARIZABILITIES OF ALKALI ATOMS .2.

The electronic dipole polarizabilities d of the alkali atoms have been recalculated with the inclusion of the shielding effect of the ion core in the perturbation equations. The resulting values of d are close to those obtained in a previous calculation, and are also in very good agreement with the recent experimental values of Hall and Zorn. The dipole polarizabilities d of the Rb+ and Cs+ ions have been recalculated, using the appropriate Hartree-Fock wave functions (including exchange), which have recently become available. The resulting values of d(Rb+) and d(Cs+) are in much better agreement with experiment than those obtained in a previous calculation using Hartree wave functions (without exchange). © 1969 The American Physical Society.