Abstract

After its success in the explanation of the isotope shift in the 5d elements, the applicability of the parametric description was also tested for the lanthanides. The following configurations were found to be suitable and useful objects for investigation: 4fn6s2 (Nd, Sm, Dy, Er), 4fn5d6s (Eu, Yb), 4fn6s6p (Eu, Er, Yb), and 4fn−15d6s2 (Gd). The first results for Sm, Eu, and Dy are compiled.

© 1984 Optical Society of America

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References

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  1. J. Bauche, "Etudes théoriques sur la partie électronique du déplacement isotopique dans les spectres atomiques," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1969).
  2. S. Büttgenbach, "Hyperfine structure in 4d- and 5d-shell atoms," in Springer Tracts in Modern Physics (Springer-Verlag, Berlin, 1982), Vol. 96.
  3. H. D. Kronfeldt, J. R. Kropp, G. Sawatzky, and R. Winkler, "Systematic trends in the parametric description of the isotope shift in the row of 5d-elements," in Proceedings of the Eighth International Conference on Atomic Physics, I. Lindgren, A. Rosén, and S. Svanberg, eds. (Wallin & Dalhdin, Lund, Sweden, 1982), paper B39.
  4. J. F. Wyart, "Classification des spectres d'arc et d'etincelle du dysprosium. Contribution a l'etude de configurations electroniques dans d'autres spectres des terres rares," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1973).
  5. J. Bauche, R. J. Champeau, and C. Sallot, "J-dependent isotope shifts in the ground term of samarium I," J. Phys. B 10, 2049–2059 (1977).
    [CrossRef]
  6. H. D. Kronfeldt, J. R. Kropp, and R. Winkler, "The isotope shift of the a 10D-term of the configuration 4ƒ75d6s in Eu I," Physica 112B + C, 138–114 (1982).
  7. V. Pfleufer, A. Reimche, and A. Steudel, "Crossed-second-order effects in the isotope shift of Eu I," Z. Phys. A 308, 185–186 (1982).
    [CrossRef]
  8. P. Aufmuth, "Isotope shift and configuration mixing in dysprosium II," Z. Phys. A 286, 235–241 (1978).
    [CrossRef]
  9. J. R. Kropp, H. D. Kronfeldt, and R. Winkler, "Parametric analysis of the level-isotope shift in the configuration 4ƒ76s6p in the Eu I spectrum," Physica C (1984) (to be published).

1982 (4)

S. Büttgenbach, "Hyperfine structure in 4d- and 5d-shell atoms," in Springer Tracts in Modern Physics (Springer-Verlag, Berlin, 1982), Vol. 96.

H. D. Kronfeldt, J. R. Kropp, G. Sawatzky, and R. Winkler, "Systematic trends in the parametric description of the isotope shift in the row of 5d-elements," in Proceedings of the Eighth International Conference on Atomic Physics, I. Lindgren, A. Rosén, and S. Svanberg, eds. (Wallin & Dalhdin, Lund, Sweden, 1982), paper B39.

H. D. Kronfeldt, J. R. Kropp, and R. Winkler, "The isotope shift of the a 10D-term of the configuration 4ƒ75d6s in Eu I," Physica 112B + C, 138–114 (1982).

V. Pfleufer, A. Reimche, and A. Steudel, "Crossed-second-order effects in the isotope shift of Eu I," Z. Phys. A 308, 185–186 (1982).
[CrossRef]

1978 (1)

P. Aufmuth, "Isotope shift and configuration mixing in dysprosium II," Z. Phys. A 286, 235–241 (1978).
[CrossRef]

1977 (1)

J. Bauche, R. J. Champeau, and C. Sallot, "J-dependent isotope shifts in the ground term of samarium I," J. Phys. B 10, 2049–2059 (1977).
[CrossRef]

1973 (1)

J. F. Wyart, "Classification des spectres d'arc et d'etincelle du dysprosium. Contribution a l'etude de configurations electroniques dans d'autres spectres des terres rares," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1973).

1969 (1)

J. Bauche, "Etudes théoriques sur la partie électronique du déplacement isotopique dans les spectres atomiques," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1969).

Aufmuth, P.

P. Aufmuth, "Isotope shift and configuration mixing in dysprosium II," Z. Phys. A 286, 235–241 (1978).
[CrossRef]

Bauche, J.

J. Bauche, R. J. Champeau, and C. Sallot, "J-dependent isotope shifts in the ground term of samarium I," J. Phys. B 10, 2049–2059 (1977).
[CrossRef]

J. Bauche, "Etudes théoriques sur la partie électronique du déplacement isotopique dans les spectres atomiques," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1969).

Büttgenbach, S.

S. Büttgenbach, "Hyperfine structure in 4d- and 5d-shell atoms," in Springer Tracts in Modern Physics (Springer-Verlag, Berlin, 1982), Vol. 96.

Champeau, R. J.

J. Bauche, R. J. Champeau, and C. Sallot, "J-dependent isotope shifts in the ground term of samarium I," J. Phys. B 10, 2049–2059 (1977).
[CrossRef]

Kronfeldt, H. D.

H. D. Kronfeldt, J. R. Kropp, and R. Winkler, "The isotope shift of the a 10D-term of the configuration 4ƒ75d6s in Eu I," Physica 112B + C, 138–114 (1982).

H. D. Kronfeldt, J. R. Kropp, G. Sawatzky, and R. Winkler, "Systematic trends in the parametric description of the isotope shift in the row of 5d-elements," in Proceedings of the Eighth International Conference on Atomic Physics, I. Lindgren, A. Rosén, and S. Svanberg, eds. (Wallin & Dalhdin, Lund, Sweden, 1982), paper B39.

J. R. Kropp, H. D. Kronfeldt, and R. Winkler, "Parametric analysis of the level-isotope shift in the configuration 4ƒ76s6p in the Eu I spectrum," Physica C (1984) (to be published).

Kropp, J. R.

H. D. Kronfeldt, J. R. Kropp, G. Sawatzky, and R. Winkler, "Systematic trends in the parametric description of the isotope shift in the row of 5d-elements," in Proceedings of the Eighth International Conference on Atomic Physics, I. Lindgren, A. Rosén, and S. Svanberg, eds. (Wallin & Dalhdin, Lund, Sweden, 1982), paper B39.

H. D. Kronfeldt, J. R. Kropp, and R. Winkler, "The isotope shift of the a 10D-term of the configuration 4ƒ75d6s in Eu I," Physica 112B + C, 138–114 (1982).

J. R. Kropp, H. D. Kronfeldt, and R. Winkler, "Parametric analysis of the level-isotope shift in the configuration 4ƒ76s6p in the Eu I spectrum," Physica C (1984) (to be published).

Pfleufer, V.

V. Pfleufer, A. Reimche, and A. Steudel, "Crossed-second-order effects in the isotope shift of Eu I," Z. Phys. A 308, 185–186 (1982).
[CrossRef]

Reimche, A.

V. Pfleufer, A. Reimche, and A. Steudel, "Crossed-second-order effects in the isotope shift of Eu I," Z. Phys. A 308, 185–186 (1982).
[CrossRef]

Sallot, C.

J. Bauche, R. J. Champeau, and C. Sallot, "J-dependent isotope shifts in the ground term of samarium I," J. Phys. B 10, 2049–2059 (1977).
[CrossRef]

Sawatzky, G.

H. D. Kronfeldt, J. R. Kropp, G. Sawatzky, and R. Winkler, "Systematic trends in the parametric description of the isotope shift in the row of 5d-elements," in Proceedings of the Eighth International Conference on Atomic Physics, I. Lindgren, A. Rosén, and S. Svanberg, eds. (Wallin & Dalhdin, Lund, Sweden, 1982), paper B39.

Steudel, A.

V. Pfleufer, A. Reimche, and A. Steudel, "Crossed-second-order effects in the isotope shift of Eu I," Z. Phys. A 308, 185–186 (1982).
[CrossRef]

Winkler, R.

H. D. Kronfeldt, J. R. Kropp, G. Sawatzky, and R. Winkler, "Systematic trends in the parametric description of the isotope shift in the row of 5d-elements," in Proceedings of the Eighth International Conference on Atomic Physics, I. Lindgren, A. Rosén, and S. Svanberg, eds. (Wallin & Dalhdin, Lund, Sweden, 1982), paper B39.

H. D. Kronfeldt, J. R. Kropp, and R. Winkler, "The isotope shift of the a 10D-term of the configuration 4ƒ75d6s in Eu I," Physica 112B + C, 138–114 (1982).

J. R. Kropp, H. D. Kronfeldt, and R. Winkler, "Parametric analysis of the level-isotope shift in the configuration 4ƒ76s6p in the Eu I spectrum," Physica C (1984) (to be published).

Wyart, J. F.

J. F. Wyart, "Classification des spectres d'arc et d'etincelle du dysprosium. Contribution a l'etude de configurations electroniques dans d'autres spectres des terres rares," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1973).

J. Phys. B (1)

J. Bauche, R. J. Champeau, and C. Sallot, "J-dependent isotope shifts in the ground term of samarium I," J. Phys. B 10, 2049–2059 (1977).
[CrossRef]

Physica 112B + (1)

H. D. Kronfeldt, J. R. Kropp, and R. Winkler, "The isotope shift of the a 10D-term of the configuration 4ƒ75d6s in Eu I," Physica 112B + C, 138–114 (1982).

Z. Phys. A (2)

V. Pfleufer, A. Reimche, and A. Steudel, "Crossed-second-order effects in the isotope shift of Eu I," Z. Phys. A 308, 185–186 (1982).
[CrossRef]

P. Aufmuth, "Isotope shift and configuration mixing in dysprosium II," Z. Phys. A 286, 235–241 (1978).
[CrossRef]

Other (5)

J. R. Kropp, H. D. Kronfeldt, and R. Winkler, "Parametric analysis of the level-isotope shift in the configuration 4ƒ76s6p in the Eu I spectrum," Physica C (1984) (to be published).

J. Bauche, "Etudes théoriques sur la partie électronique du déplacement isotopique dans les spectres atomiques," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1969).

S. Büttgenbach, "Hyperfine structure in 4d- and 5d-shell atoms," in Springer Tracts in Modern Physics (Springer-Verlag, Berlin, 1982), Vol. 96.

H. D. Kronfeldt, J. R. Kropp, G. Sawatzky, and R. Winkler, "Systematic trends in the parametric description of the isotope shift in the row of 5d-elements," in Proceedings of the Eighth International Conference on Atomic Physics, I. Lindgren, A. Rosén, and S. Svanberg, eds. (Wallin & Dalhdin, Lund, Sweden, 1982), paper B39.

J. F. Wyart, "Classification des spectres d'arc et d'etincelle du dysprosium. Contribution a l'etude de configurations electroniques dans d'autres spectres des terres rares," Ph.D. Thesis (Centre National de la Recherche Scientifique, Orsay, France, 1973).

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Figures (1)

Fig. 1
Fig. 1

Fine structure in the neutral lanthanides (section).

Tables (2)

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Table 1 Crossed-Second-Order Parameter z4f and z5d

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Table 2 IS Parameters of 4f76s6p in Eu i

Equations (3)

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Δ T res = Δ T - NMS FS .
Δ T res i = α 1 i · Δ T res i + α 2 i · Δ T res i + ,
T ( 4 f 7 6 s 6 p ) i = c 1 a + c 2 i g 1 + c 3 i z 6 p + c 4 i g 3 ,

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