The frozen-core approximation with a nonempirical polarisation potential: The sodium isoelectronic sequence

R. P. McEachran, M. Cohen

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Orbital wavefunctions of a large number of levels Na I, Mg II, Al III and Cl VII have been calculated using a frozen-core Hartree-Fock approximation which includes a nonempirical polarisation potential derived from polarised core orbitals. The calculated ionisation energies are in very good agreement with precise measurements. Electric dipole oscillator strengths derived from the computed wavefunctions and energies are found to be of generally high accuracy.

Original languageEnglish
Article number007
Pages (from-to)3125-3135
Number of pages11
JournalJournal of Physics B: Atomic and Molecular Physics
Volume16
Issue number17
DOIs
StatePublished - 1983

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