Title: Theoretical Studies of Spectroscopic Properties of the Cm+4 and Am+3
Authors: GAIGALAS G.GAIDAMAUSKAS E.RUDZIKAS Z.MAGNANI NicolaCACIUFFO Roberto
Citation: PHYSICAL REVIEW A vol. 79 p. 022511-1 022511-8
Publisher: AMER PHYSICAL SOC
Publication Year: 2009
JRC Publication N°: JRC50625
ISSN: 1050-2947
URI: http://dx.doi.org/10.1103/PhysRevA.79.022511
http://publications.jrc.ec.europa.eu/repository/handle/JRC50625
DOI: 10.1103/PhysRevA.79.022511
Type: Articles in Journals
Abstract: In this paper we report on large-scale multiconfiguration Hartree-Fock and multiconfiguration Dirac-Fock calculations of the fine structures of the Cm4+ and Am3+ ions, both having nominal 5f6 electronic configuration. Correlation effects play an extremely important role for both considered ions, and the single-configuration model is proved to be unfit to account for this complex picture. A comparison of the calculated energy levels with the results of spectroscopic measurements shows that theory and experiment are in quantitatively good agreement; the ground state of both ions is predicted to have nonmagnetic character. The accuracy of the results is estimated and discussed.
JRC Institute:Institute for Transuranium Elements

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