Identification of 5g and 6g terms and revised ionization energies in the Yb ii 4f^14n l isoelectronic sequence

Abstract

The 5f-5g transitions in Lu iii through Os viii and the 5f-6g transitions in Hf iv through W vi were identified and used to redetermine the ionization energies of Yb ii, Lu iii, W vi, Re vii, and Os viii. Complete line-lists and energy levels are given for the one-electron spectra Hf iv, W vi and Os viii.