Abstract

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 (<sup>7</sup><i>P</i>, <sup>9</sup><i>F</i>, <sup>9</sup><i>D</i>, <sup>7</sup><i>D</i>) of the configuration 4ƒ<sup>7</sup>(<sup>8</sup><i>S</i><sub>3½</sub>)5<i>d</i>6<i>s</i>6<i>p</i>. Russell’s prediction that the next even configuration, 4ƒ<sup>7</sup>(<sup>8</sup>S<sub>3½</sub>)5<i>d</i><sup>2</sup>6<i>p</i>, begins at ~25000 cm<sup>-1</sup> is confirmed. The observed <i>g</i>-values in general lie within ±5% of the <i>L</i>-<i>S</i> coupling values, but marked deviations occur for some levels, indicating that energy-level mixing is present.

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References

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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).

Desmarais, D.

D. Desmarais and E. H. Pinnington, J. Opt. Soc. Am. 57, 1245 (1967).

Moore, C. E.

C. E. Moore, NBS Circ. 467, 197 (1952).

Pinnington, E. H.

E. H. Pinnington, Can. J. Phys. 41, 1294 (1963).

D. Desmarais and E. H. Pinnington, J. Opt. Soc. Am. 57, 1245 (1967).

Russell, H. N.

H. N. Russell, J. Opt. Soc. Am. 40, 550 (1950).

Smith, G.

G. Smith and B. G. Wybourne, J. Opt. Soc. Am. 55, 1278 (1965).

Smith, K. F.

K. F. Smith and I. J. Spalding, Proc. Roy. Soc. (London) 265, 133 (1961).

Spalding, I. J.

K. F. Smith and I. J. Spalding, Proc. Roy. Soc. (London) 265, 133 (1961).

Wybourne, B. G.

G. Smith and B. G. Wybourne, J. Opt. Soc. Am. 55, 1278 (1965).

Other

D. Desmarais and E. H. Pinnington, J. Opt. Soc. Am. 57, 1245 (1967).

H. N. Russell, J. Opt. Soc. Am. 40, 550 (1950).

K. F. Smith and I. J. Spalding, Proc. Roy. Soc. (London) 265, 133 (1961).

G. Smith and B. G. Wybourne, J. Opt. Soc. Am. 55, 1278 (1965).

E. H. Pinnington, Can. J. Phys. 41, 1294 (1963).

C. E. Moore, NBS Circ. 467, 197 (1952).

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