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  • 1
    Digitale Medien
    Digitale Medien
    High resolution measurements of hyperfine structure and isotope shifts in 9 spectral lines of Nd I (1981)
    Springer
    The European physical journal 301 (1981), S. 95-99 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Nine transitions in Nd I, originating from various levels belonging to the 4f 46s 2 ground state configuration, have been studied with high resolution using an actively stabilized C.W. ring dye laser in a crossed laser-atomic-beam set-up. Accurate values for the isotope shifts in all transitions as well as for the hyperfine structure constants of 7 excited states have been obtained.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01419237
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    The stark effect in the 6snf Rydberg series of barium (1985)
    Springer
    The European physical journal 322 (1985), S. 211-219 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 32.20.J ; 32.60.S
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The polarizabilities of the barium 6snf 3 F 2 levels with principal quantum numbern ranging from 11 to 40 have been measured in a high resolution laser-atomic-beam experiment. In Coulomb approximation the contributions to the polarizabilities of all known even-parity levels connected with the3 F 2 levels via the electric dipole operator have been calculated. In this way information on the to a large extent unknown 6sng 3 G 3 Rydberg series is extracted. The results support earlier observations of a perturbation of this series in betweenn = 18 and 19, but no evidence has been found for a perturbation nearn = 14.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01411885
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    The Stark effect in the 6snf Rydberg series of barium (1985)
    Springer
    The European physical journal 322 (1985), S. 385-391 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 32.20. Jj ; 32.60. S
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract In the last paper on the polarizabilities in the 6snf Rydberg series of barium results for the 6snf 3F4 levels withn=13–40 are reported. The scalar and tensor polarizabilities are analyzed using existing data on the adjacent even-parity 6snd 3 D 3 series as well as data on neighbouring 6sng 3 G 3 and1,3 G 4 series derived from the polarizabilities of the 6snf 3 F 2 and1,3 F 3 series. This results in information on the to a large extent unknown 6sng 3 G 5 series and confirms the perturbation of this series in betweenn=15 and 16 by the doubly excited5d7d 3G5 level. A tentative two-channel quantum-defect analysis is presented. In conclusion the results on the 6sng configuration deduced from the study of the quadratic Stark effect in the 6snf configuration are summarized.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01412073
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    The Stark effect in the 6snf Rydberg series of barium (1985)
    Springer
    The European physical journal 322 (1985), S. 371-383 
    Details
    ISSN: 1434-601X
    Schlagwort(e): 32.20. Jj ; 32.60. S
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The Stark effect has been studied in the odd-parity 6snf1,3F3 Rydberg series of barium with high-resolution laser-atomic-beam spectroscopy. Scalar and tensor polarizabilities have been measured of 6snf1F3 levels with n=11–30 and of 6snf3F3 levels withn = 12 − 40. The contributions of the adjacent even-parity Rydberg levels to these polarizabilities have been calculated as far as data are available. This results in important additional information on the only partly known 6sng1,3G4 series and confirms the perturbation of these series atn = 24 by a 5d7dJ= 4 level. A tentative three-channel quantum-defect-theory analysis of the1,3G4 series has been performed. It is shown that reported level energies of the 6snd1,3D2 series are systematically 0.14 cm−1 too high.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01412072
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