Experimental and theoretical studies of lifetimes and transition probabilities for Au II

Research output: Contribution to journalArticle

Abstract

We report lifetime measurements for three of the 5d(9)6p levels in An II and relativistic multiconfiguration Dirac-Fock (MCDF) calculations of lifetimes and transitions probabilities in this ion. The work was motivated by significant disagreements between previous experimental 5d(9)6p lifetimes, obtained by means of the beam-foil (BF) method and theoretical data based on Hartree-Fock calculations in which relativistic effects were included as perturbations. The new measurements, based on laser-induced fluorescence, support the BF data and are also in excellent agreement with the MCDF results. We confirm that, while computational methods which include perturbative relativistic corrections appear to be adequate for moderately heavy elements such as Ag, fully relativistic calculations are essential for describing systems as heavy as Au.

Details

Authors
  • Zhang Zhiguo
  • Tomas Brage
  • LJ Curtis
  • Hans Lundberg
  • Indrek Martinson
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Condensed Matter Physics
  • Atom and Molecular Physics and Optics
Original languageEnglish
Pages (from-to)483-490
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume35
Issue number3
Publication statusPublished - 2002
Publication categoryResearch
Peer-reviewedYes

Total downloads

No data available