Spin–other–orbit and spin–orbit interactions in ƒ2 and ƒ3 electron configurations

Abstract

AbstractExpressions of the matrix elements of the spin–other–orbit and spin–orbit interactions for the various multiplets of all the states of ƒ2‐ and ƒ3‐electron configurations are reported and used to evaluate the Hartree–Fock values of these interactions in the neutral atoms Ce(4ƒ2), Pr(4ƒ3), Ho(4ƒ11) and Er(4ƒ12). The required values of the spin–spin parameters M, and the spin‐orbit parameter ζ for these atoms were obtained using numerical Hartree–Fock wave functions.