Abstract
Systematic study of hyperfine structures, Zeeman and Stark effects in Sm I is performed for the lowest 7G1-6 levels belonging to the configuration 4f 66s6p by atomic-beam laser spectroscopy with fluorescence detection. The hyperfine coupling constants of 7G2-6 levels are determined. From the Zeeman splittings for the 4f 66s 2 7F2-6 − 4f 66s6p 7G2-6 transitions, g-values are determined for the 7G2.6 levels and the precision is improved by several orders of magnitude. From the Stark splittings for the 7F0-3 − 7G1-3 transitions, tensor polarizabilities α 2(J) are determined for the upper 7G1-3 levels. Particularly for the 7G1 level (15 650.55 cm−1) which has close-lying opposite-parity level, the isotope dependence of α 2(J) is clearly observed for the first time.
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Fukumi, A., Endo, I., Horiguchi, T. et al. Stark and Zeeman spectroscopies of 4f 66s6p 7G1-6 levels in Sm I under external electric and magnetic fields. Z Phys D - Atoms, Molecules and Clusters 42, 243–249 (1997). https://doi.org/10.1007/s004600050362
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DOI: https://doi.org/10.1007/s004600050362