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Journal of Atomic and Molecular Physics
Volume 2013 (2013), Article ID 674242, 12 pages
http://dx.doi.org/10.1155/2013/674242
Research Article

Energy Levels and the Landé -Factors for Singly Ionized Lanthanum

Department of Physics, Sakarya University, 54187 Sakarya, Turkey

Received 25 January 2013; Accepted 20 April 2013

Academic Editor: Gregory Lapicki

Copyright © 2013 Betül Karaçoban and Leyla Özdemir. 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.

Abstract

We have calculated the energies and the Landé -factors for 5d2, 5d6s, 6s2, 4f6p, 5d7s, 5d6d, 4f2, 6p2, 6s6d, 6s7s, 4f6s, 4f5d, 5d6p, 6s6p, 4f7s, 4f6d, 5d7p, and 6s7p excited levels of singly ionized lanthanum (La II). These calculations have been carried out by using the multiconfiguration Hartree-Fock method within the framework of the Breit-Pauli Hamiltonian (MCHF+BP) and the relativistic Hartree-Fock (HFR) method. The obtained results have been compared with other works available in the literature. A discussion of these calculations for La II in this study has also been in view of the MCHF+BP and HFR methods.