Next Article in Journal / Special Issue
Calculation of Rates of 4p–4d Transitions in Ar II
Previous Article in Journal / Special Issue
JJ2LSJ Transformation and Unique Labeling for Energy Levels
Article Menu

Export Article

Open AccessArticle
Atoms 2017, 5(1), 7; doi:10.3390/atoms5010007

Core Effects on Transition Energies for 3dk Configurations in Tungsten Ions

1
Department of Computer Science, University of British Columbia, Vancouver V6T 1Z4, BC, Canada
2
Vilnius University, Institute of Theoretical Physics and Astronomy, Saul˙etekio av. 3, LT-10222 Vilnius, Lithuania
3
Materials Science and Applied Mathematics, Malmö University, SE-205 06 Malmö, Sweden
*
Author to whom correspondence should be addressed.
Received: 20 December 2016 / Accepted: 26 January 2017 / Published: 8 February 2017
(This article belongs to the Special Issue Spectra of Ionized Atoms: From Laboratory to Space)
View Full-Text   |   Download PDF [327 KB, uploaded 10 February 2017]   |  

Abstract

Allenergylevelsofthe3dk,k=1,2,...,8,9,configurationsfortungstenions,computedusing the GRASP2K fully relativistic code based on the variational multiconfiguration Dirac–Hartree–Fock method, are reported. Included in the calculations are valence correlation where all 3s,3p,3d orbitals are considered to be valence orbitals, as well as core–valence and core–core effects from the 2s,2p subshells. Results are compared with other recent theory and with levels obtained from the wavelengths of lines observed in the experimental spectra. It is shown that the core correlation effects considerably reduce the disagreement with levels linked directly to observed wavelengths, but may differ significantly from the NIST levels, where an unknown shift of the levels could not be determined from experimental wavelengths. For low values of k, levels were in good agreement with relativistic many-body perturbation levels, but for 2 < k < 8, the present results were in better agreement with observation. View Full-Text
Keywords: corecorrelationeffects;energylevels;multiconfigurationDirac-Hartree-Fock;tungstenions corecorrelationeffects;energylevels;multiconfigurationDirac-Hartree-Fock;tungstenions
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Fischer, C.F.; Gaigalas, G.; Jönsson, P. Core Effects on Transition Energies for 3dk Configurations in Tungsten Ions. Atoms 2017, 5, 7.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Atoms EISSN 2218-2004 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top