https://doi.org/10.1007/s100530050313
Doppler limited laser spectroscopy on hafnium lines. Part I: Hyperfine structure of even-parity levels
1
Département de Physique, Faculté des Sciences, B.P. 1039, 51687 Reims
Cedex, France
2
Universität der Bundeswehr Hamburg, Holstenhofweg 85, 22043 Hamburg, Germany
3
Politechnika Poznanska, Katedra Fizyki Atomowej, ul. Piotrowo 3, 60-965
Poznan, Poland
Received:
28
October
1998
Revised:
12
January
1999
Published online: 15 June 1999
High-resolution Doppler limited hyperfine structure investigations
done by laser spectroscopy techniques using laser induced fluorescence and
optogalvanic detection are performed in the plasma of a liquid nitrogen cooled
hollow cathode discharge in the atomic spectrum of Hafnium on selected lines
in the red spectral region. Hyperfine structure spectra obtained using an
enriched sample of 177Hf yielded hyperfine structure constants A and B of
both transition levels. For the first time, an experimentally derived description
of the levels of the 
configuration are presented. Combined with previously
obtained data, the hyperfine structure of altogether 12 fine structure levels
has been analysed by the simultaneous parametrisation of the one- and two-body
interactions in the atomic hyperfine structure for the model space 
.The radial parameters of the magnetic dipole and electric quadrupole
interactions are determined for the configurations 
, and 
and compared
with ab initio calculations. Finally a complete list of the predicted hyperfine structure
constants A and B of all levels of the system was generated.
PACS: 31.30.Gs – Hyperfine interactions and isotope effects, Jahn-Teller effect
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999
