Victor Kaufman and Jack Sugar, "One-Electron Spectrum of Doubly Ionized Lutetium (Lu iii) and Nuclear Magnetic Dipole Moment of 175Lu," J. Opt. Soc. Am. 61, 1693-1698 (1971)
Thirteen new terms of the 4f14(1S0)nl doublet system of Lu2+ have been found, comprising the ns series (7 ≤ n ≤ 10), the nf series (5 ≤ n ≤ 9), and the 5g, 6d, 7d, and 7p terms. Previously, only the 5d, 6s, and 6p terms were known. The ns series was used to derive an ionization energy of 169049±10 cm−1. From the completely resolved hyperfine structure (hfs) of 6s2S1/2, the value a(6s) = 0.436±0.002 cm−1 was obtained for the hyperfine splitting factor. With these data, the nuclear magnetic dipole moment μI was found to be 2.204±0.010μN, where the stated uncertainty includes only the experimental uncertainty for a(6s).
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
The wavelengths below 2000 Å are vacuum wavelengths. Above 2000 Å, air wavelengths are given.
The relative intensities of widely separated multiplet components, especially those above 2000 Å, could not be estimated meaningfully.
The total angular momentum, F = J+I, is given in parentheses following the designation for the
levels of 6, 7, and 8s and 6p.
It was not possible to obtain a meaningful wavelength or intensity for this line because of the presence of a Si ii line at approximately this same wavelength.
Interference from another Lu line precluded the possibility of measuring the hyperfine structure of this line.
This line is shaded to the violet, indicating normal hfs of 7p2P3/2° level.
Evident unresolved hfs shaded to the red is probably due to interaction of 5f term with 4f135d6s configuration.
All level and interval values are in units of cm−1. The uncertainties in the level values are ±0.1 cm−1 except for 8f and 9f where ±1.0 cm−1 is indicated. The larger number of significant figures given for the levels with hfs is indicative of the higher precision of the hfs intervals.
The effective quantum number n* is based on an ionization potential of 169 049 cm−1 and RLu = 109 737 cm−1. Effective quantum numbers are given for each level of the nf2F terms because perturbations affect the individual levels differently.
Table III
Values of μI for 175Lu derived by various authors (units are μN).
The wavelengths below 2000 Å are vacuum wavelengths. Above 2000 Å, air wavelengths are given.
The relative intensities of widely separated multiplet components, especially those above 2000 Å, could not be estimated meaningfully.
The total angular momentum, F = J+I, is given in parentheses following the designation for the
levels of 6, 7, and 8s and 6p.
It was not possible to obtain a meaningful wavelength or intensity for this line because of the presence of a Si ii line at approximately this same wavelength.
Interference from another Lu line precluded the possibility of measuring the hyperfine structure of this line.
This line is shaded to the violet, indicating normal hfs of 7p2P3/2° level.
Evident unresolved hfs shaded to the red is probably due to interaction of 5f term with 4f135d6s configuration.
All level and interval values are in units of cm−1. The uncertainties in the level values are ±0.1 cm−1 except for 8f and 9f where ±1.0 cm−1 is indicated. The larger number of significant figures given for the levels with hfs is indicative of the higher precision of the hfs intervals.
The effective quantum number n* is based on an ionization potential of 169 049 cm−1 and RLu = 109 737 cm−1. Effective quantum numbers are given for each level of the nf2F terms because perturbations affect the individual levels differently.
Table III
Values of μI for 175Lu derived by various authors (units are μN).