The relativisticab initiomodel potential versus Dirac-Fock oscillator strengths for silver and gold isoelectronic sequences

Abstract

The ability of the relativistic ab initio model potential approach with explicit local exchange to produce oscillator strengths in agreement with Dirac-Fock (DF) data is tested for some transitions in silver and gold isoelectronic sequences. It is shown that all three model-potential approaches used, which differ in the local approximation for valence-core electron exchange, yield individual oscillator strengths mostly within 10% of the accurate DF results. The agreement with available experimental data is also discussed.

Precision Measurement Method for Branching Fractions of ExcitedP1/2States Applied toCa+40Ramm1, Pruttivarasin2, Kokish3 et al. 2013Phys. Rev. Lett.485650View full textAdd to dashboardCite

“…In Au, both theoretical [22] and experimental [1,2] studies on the atomic structure have been done and used to study the radiation spectrum from stars [5]. In Sc ++ and Sr + , experimental measurements have yet to be done to verify theoretical calculations [23][24][25].…”

Excitation energies, oscillator strengths, and lifetimes of levels along the gold isoelectronic sequence

“…In Table VI, we compare our oscillator strength data with theoretical results from Ref. [13] and with available experimental measurements. The oscillator strengths f SD in the table are calculated in the SD approximation.…”

“…It should be noted that theoretical SD energies E tot from Table III are used to calculate f SD . Theoretical oscillator strengths f theor from [13] were calculated using polarizable frozen ion-like Dirac-Fock method ͑DF+ CP͒. The experimental data f expt listed in Table VI are from Ref.…”

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