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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 57, Iss. 10 — Oct. 1, 1967
  • pp: 1252–1252

Zeeman-Effect Analysis of the Spectrum of Neutral Gadolinium (Gd I)

ERIC H. PINNINGTON  »View Author Affiliations

JOSA, Vol. 57, Issue 10, pp. 1252-1252 (1967)

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199 Zeeman patterns are presented for Gd I, from which g-values are calculated for 118 levels. A discussion is given of the terms and electron configurations to which previously unassigned even levels may belong; new assignments are given for 15 even levels belonging to four terms (7P, 9F, 9D, 7D) of the configuration 4ƒ7(8S)5d6s6p. Russell’s prediction that the next even configuration, 4ƒ7(8S)5d26p, begins at ~25000 cm-1 is confirmed. The observed g-values in general lie within ±5% of the L-S coupling values, but marked deviations occur for some levels, indicating that energy-level mixing is present.

ERIC H. PINNINGTON, "Zeeman-Effect Analysis of the Spectrum of Neutral Gadolinium (Gd I)," J. Opt. Soc. Am. 57, 1252-1252 (1967)

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  1. D. Desmarais and E. H. Pinnington, J. Opt. Soc. Am. 57, 1245 (1967).
  2. H. N. Russell, J. Opt. Soc. Am. 40, 550 (1950).
  3. K. F. Smith and I. J. Spalding, Proc. Roy. Soc. (London) 265, 133 (1961).
  4. G. Smith and B. G. Wybourne, J. Opt. Soc. Am. 55, 1278 (1965).
  5. E. H. Pinnington, Can. J. Phys. 41, 1294 (1963).
  6. C. E. Moore, NBS Circ. 467, 197 (1952).

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