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  • 31.30.G  (2)
  • PACS. 31.30.Gs Hyperfine interactions and isotope effects, Jahn-Teller effect  (2)
  • 1
    Digitale Medien
    Digitale Medien
    Sternheimer free determination of the51V nuclear quadrupole moment from hyperfine structure measurements (1989)
    Springer
    The European physical journal 11 (1989), S. 259-271 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 21.10.K ; 31.30.G ; 35.10.F
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01438497
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Hyperfine structure studies in the mixed configurations (4p 2 4d+4s 4p 4) of arsenic (1987)
    Springer
    The European physical journal 7 (1987), S. 185-188 
    Details
    ISSN: 1434-6079
    Schlagwort(e): 31.30.G
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: 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.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01384586
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Doppler limited laser spectroscopy on hafnium lines. Part II: Hyperfine structure of odd-parity levels (1999)
    Springer
    The European physical journal 6 (1999), S. 311-317 
    Details
    ISSN: 1434-6079
    Schlagwort(e): PACS. 31.30.Gs Hyperfine interactions and isotope effects, Jahn-Teller effect
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: The hyperfine structure of selected odd-parity levels of the configurations 5d6s 26p and 5d 26s6p of I was studied in 10 lines lying in the red spectral region. Hyperfine spectra were obtained by the method of laser induced fluorescence in the plasma of a liquid nitrogen cooled hollow cathode discharge. The observed hyperfine structure constants A and B, together with results from earlier studies were analyzed by means of a parametric method. The interpretation has been carried out based on a refined multiconfigurational fine structure calculation including the main Rydberg series configurations mutually interacting. The set of fine structure parameters as well as the leading eigenvector percentages of levels relevant for this paper are given. The following single electron hfs parameters were deduced for : , , , for the lowest configuration.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100530050314
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  • 4
    Digitale Medien
    Digitale Medien
    Doppler limited laser spectroscopy on hafnium lines. Part I: Hyperfine structure of even-parity levels (1999)
    Springer
    The European physical journal 6 (1999), S. 303-309 
    Details
    ISSN: 1434-6079
    Schlagwort(e): PACS. 31.30.Gs Hyperfine interactions and isotope effects, Jahn-Teller effect
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: High-resolution Doppler limited hyperfine structure investigations done by laser spectroscopy techniques using laser induced fluorescence and optogalvanic detection are performed in the plasma of a liquid nitrogen cooled hollow cathode discharge in the atomic spectrum of Hafnium on selected lines in the red spectral region. Hyperfine structure spectra obtained using an enriched sample of 177Hf yielded hyperfine structure constants A and B of both transition levels. For the first time, an experimentally derived description of the levels of the 5d36s configuration are presented. Combined with previously obtained data, the hyperfine structure of altogether 12 fine structure levels has been analysed by the simultaneous parametrisation of the one- and two-body interactions in the atomic hyperfine structure for the model space (5d + 6s)4.The radial parameters of the magnetic dipole and electric quadrupole interactions are determined for the configurations 5d 2 6s 2 , 5d36s and 5d4 and compared with ab initio calculations. Finally a complete list of the predicted hyperfine structure constants A and B of all levels of the system was generated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100500050348
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