Eur. Phys. J. D 41, 61-70 (2007)
https://doi.org/10.1140/epjd/e2006-00207-y

Fine and hyperfine structure in the atomic spectrum of niobium

Theoretical analysis of the odd configurations and further new levels

¹ Institut für Atomare Physik und Fachdidaktik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany
² Istanbul University, Faculty of Science, Physics Department, 34459 Vezneciler, Istanbul, Turkey
³ Technical University of Istanbul, Faculty of Science and Letters, Physics Department, 34469 Maslak, Istanbul, Turkey
⁴ Laboratoire Aimé Cotton, CNRS (UPR3321), Campus d'Orsay, Bâtiment 505, 91405 Orsay, France

Corresponding author: ^a sk@kalium.physik.tu-berlin.de

Received: 15 March 2006
Revised: 21 May 2006
Published online: 13 September 2006

Abstract

A parametric analysis of the fine and the magnetic dipole hyperfine structure for the three configurations of odd parity 4d³5s5p, 4d⁴5p and 4d²5s²5p was performed. Effective one-electron parameters were determined and theoretical predictions are given for the magnetic dipole hyperfine structure constants A for the levels of these three configurations. Additionally, 12 new energy levels could be found, four of odd and eight of even parity, by re-analysing data for experimental wavelengths of Nb.