MCDHF calculations of Lande g-factors

The purpose of this paper is to present accurate Lande g-factors for states in BII, CI-IV, AlI-II, SiI-IV, PII, SII, ClIII, ArIV, CaI, TiII, ZrIII, and SnII. The multiconfiguration Dirac-Hartree-Fock and relativistic configuration interaction methods, which are implemented in the general-purpose relativistic atomic structure package GRASP2K, are employed in the present work to compute the Lande g-factors for states in BII, CI-IV, AlI-II, SiI-IV, PII, SII, ClIII, ArIV, CaI, TiII, ZrIII, and SnII.

The accuracy of the wave functions for the states, and thus the accuracy of the resulting Lande g-factors, is evaluated by comparing the computed excitation energies and energy separations with the National Institute of Standards and Technology (NIST) recommended data. All excitation energies are in very good agreement with the NIST values except for TiII, which has an average difference of 1.06%. The average uncertainty of the energy separations is well below 1% except for the even states of AlI; odd states of SiI, CaI, TiII, ZrIII; and even states of SnII for which the relative differences range between 1% and 2%.