Theoretical studies of spectroscopic properties of Cm4+ and Am3+

被引：8

作者：

Gaigalas, Gediminas ^{[1
]}

Gaidamauskas, Erikas ^{[1
]}

Rudzikas, Zenonas ^{[1
]}

Magnani, Nicola ^{[2
]}

Caciuffo, Roberto ^{[2
]}

机构：

[1] Vilnius State Univ, Res Inst Theoret Phys & Astron, LT-01108 Vilnius, Lithuania

[2] European Commiss, Joint Res Ctr, Inst Transuranium Elements, D-76125 Karlsruhe, Germany

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 02期

关键词：

ab initio calculations; americium; curium; Dirac-Fock calculations; fine structure; ground states; HF calculations; positive ions; PROGRAM; 5F6;

D O I：

10.1103/PhysRevA.79.022511

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 5f(6) 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.

引用

页数：8

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