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  • 1
    Electronic Resource
    Electronic Resource
    Die relative Isotopenlage des Os184 (1962)
    Springer
    The European physical journal 166 (1962), S. 216-219 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using 3 mg of an Osmium sample, enriched in Os184 to 2.25%, the isotopic shiftΔν(Os192−Os184) has been measured in two Os I-lines with a recording Fabry-Perot interferometer. The relative isotopic shift of Os184 has been found to be $$\frac{{\Delta v(Os^{192} - Os^{184} )}}{{\Delta v(Os^{192} - Os^{190} )}} = 4.79 \pm 0.05$$ .
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01377952
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  • 2
    Electronic Resource
    Electronic Resource
    Evaluation of changes in mean-square nuclear charge radii of stable isotopes of erbium (1987)
    Springer
    Hyperfine interactions 34 (1987), S. 17-20 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotope shifts involving all the stable even-A isotopes of erbium have been studied in four transitions using optical technique and highly enriched isotopes. The value of change in mean-square charge radii δ〈r2〉 deduced from our studies in 5806.05 Å (f12 s2-f12 sp) transition is in excellent agreement with muonic X-ray value. With negligible specific mass shift (SMS) in 5806.05 Å line, the SMS and field shifts in other lines are compared via King-Plot. In transitions involving change of 4f-electron (e.g., f12s2-f11ds2), large negative SMS value is obtained which is very close to the theoretically predicted value.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02072674
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  • 3
    Electronic Resource
    Electronic Resource
    Isotope shifts and electronic configurations of the odd parity energy levels of singly ionised samarium (1990)
    Springer
    The European physical journal 15 (1990), S. 211-220 
    Details
    ISSN: 1434-6079
    Keywords: 35.10 ; 32.30 ; 31.30
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotope shift ΔT (148–154) has been evaluated for twelve low-lying even and 89 odd parity levels of singly ionised samarium (Sm II) from the isotope shift (IS) studies in 182 spectral lines of Sm II in the 3890–4525 Å region. These studies were carried out on a recording Fabry-Perot spectrometer using eriched isotopes148Sm (96%) and154Sm (98%) excited in liquid nitrogen-cooled hollow-cathodes. Earlier data on isotope shifts are available for only eight lines in this region. It has been found that for a few spectral lines there are errors both in magnitudes and signs of isotope shifts, reported earlier. Most of the 89 odd parity levels of Sm II, for which ΔT values have been evaluated presently, have in literature either no electronic configuration assignments or only tentative assignments. We have suggested the leading configuration for most of these odd levels of Sm II on the basis of ΔT values evaluated in the present studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437182
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  • 4
    Electronic Resource
    Electronic Resource
    Determination of crossed-second-order field shift in8 F and6 F terms of 4f 6(7 F)6s configuration of sm+ (1987)
    Springer
    The European physical journal 6 (1987), S. 227-229 
    Details
    ISSN: 1434-6079
    Keywords: 31.30.G ; 32.20.J
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report here the experimental evaluation of crossed-second-order (CSO) effects in the field shift of8 F and6 F terms of 4f 6(7 F)6s configuration of singly ionised samarium. Our experimental value of CSO field shift difference between8 F and6 F terms for148Sm and154Sm is −11.8(3.2) mK, which is in good agreement with the theoretical value of −13.8 mK evaluated using known parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436668
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    Paper (German National Licenses)
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