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Hyperfine splitting and isotope shift in the optical transition of Eu isotopes and electromagnetic moments of Eu (2000)

Gangrsky, Yu.P. ; Karaivanov, V.D. ; Markov, B.N. ; [et al.]

Springer

The European physical journal 11 (2000), S. 341-345

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ISSN: 1434-6079

Keywords: PACS. 21.10.Ky Electromagnetic moments - 31.30.Gs Hyperfine interaction and isotope effects, John-Teller effect

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract: The laser-induced resonance fluorescence in an atomic beam was used in order to measure the hyperfine splitting of the 4f 7 6s 2 and 4f7 6s6p levels in 151,153,155Eu isotopes. The hfs constants A and B of the unstable 155Eu were determined for the first time: MHz, MHz and MHz. With these data and after corrections for second-order hyperfine structure perturbations the nuclear moments of 155Eu were deduced: n.m. and b. In addition new and more precise values of the hfs constants of the excited state for the stable 151,153Eu were obtained. They are as follows: MHz, MHz and MHz, MHz. The hyperfine anomalies % and % were extracted from the corrected hfs constants.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s100530070061

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Sternheimer free determination of the51V nuclear quadrupole moment from hyperfine structure measurements (1989)

Unkel, P. ; Buch, P. ; Dembczyński, J. ; [et al.]

Springer

The European physical journal 11 (1989), S. 259-271

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ISSN: 1434-6079

Keywords: 21.10.K ; 31.30.G ; 35.10.F

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The hyperfine structure (hfs) of 18 metastable states of51V has been measured by laser induced fluorescence. 15 of these states have been measured additionally very precisely by the ABMR-LIRF method. Using results of earlier hfs measurements, the hfs of altogether 33 fine structure states is analyzed using a method of simultaneous parametrization of one- and two-body interactions in the atomic hfs of the model space 3d 3 +M 4s 2 −M (M = 0, 1, 2). The hfs of these states is described by 16 parameters for the magnetic dipole interaction and 12 parameters for the electric quadrupole interaction. From these model space parameters corresponding configuration dependent parameters for the three configurations were determined. These parameters allow a prediction of the hfs constants of all states of the modelspace within an accuracy of 5 to 10%. The evaluation of the nuclear quadrupole moment of51V, free of Sternheimer corrections up to second order, yielded the value of -0.043(5) barn.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01438497

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Hyperfine structure measurements of the metastable (3d 6 4s 2)3 H 4, 5, 6 states of57Fe: Configuration interaction in the hyperfine structure of the iron atom (1986)

Ertmer, W. ; Johann, U. ; Dembczyński, J. ; [et al.]

Springer

The European physical journal 2 (1986), S. 67-77

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ISSN: 1434-6079

Keywords: 35.10. FK ; 32.30. Bv ; 31.30. Gs

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We report the hyperfine structure (hfs) measurement of the metastable (3d 6 4s 2)a 3 H 4, 5, 6 states of57Fe. The kHz-precision of these experimental results together with the hyperfine structure values of (3d 6 4s 2)a 5 D 1, 2, 3, 4, (3d 7 4s)a 5 F 2, 3, 4, 5, and (3d 7 4s)a 3 F 2, 3, 4, which were measured earlier, allowed to determine a very detailed set of effective radial parameters describing the hfs of these states, using a new parametrization method. This method treats one- and two-body contributions to the hfs separately. In this way configuration interaction effects in the hfs of the57Fe atom can be studied in detail and compared with configuration interaction effects in the fine structure of the same atom.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01437244

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Hyperfine structure studies in the mixed configurations (4p 2 4d+4s 4p 4) of arsenic (1987)

Bouazza, S. ; Bauche, J. ; Dembczynski, J. ; [et al.]

Springer

The European physical journal 7 (1987), S. 185-188

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ISSN: 1434-6079

Keywords: 31.30.G

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The magnetic hyperfine structures of some levels of the 4p 2 4d configuration which mixes strongly with the 4s 4p 4 configuration, have been measured for the first time, using the Fabry-Perot technique in the far UV range. A good agreement is observed between experimental results and theoretical evaluations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01384586

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