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  • 29.30.Dn  (1)
  • 74.76.Bz  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Precision measurement of the conversion electron spectrum of83m Kr with a solenoid retarding spectrometer (1992)
    Springer
    The European physical journal 342 (1992), S. 71-78 
    Details
    ISSN: 1434-601X
    Keywords: 27.50.+e ; 29.30.Dn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper reports on precision measurements of conversion lines in the decay of83mKr with nuclear transition energies of 32.1 keV and 9.4 keV, respectively. The spectra were taken from a submonolayer surface of83m Kr frozen onto a cold backing, using the new Mainz solenoid retarding spectrometer. The high luminosity and resolution of this instrument enables the observation of all allowed conversion lines up to theN-shell and to fully separate the elastic component from inelastic satellites. The combined analysis of the data yields the transition energiesE y=32151.5±1.1 eV and 9405.9±0.8 eV, respectively. The experiment served also to pilot the application of this spectrometer to the question of a finite neutrino rest mass, searched for in theβ-decay spectrum of tritium and to problems in precision electron spectroscopy in general.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294491
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  • 2
    Electronic Resource
    Electronic Resource
    Structures in superconducting YBa2Cu3O7−δ thin films investigated by magneto-optic technique (1996)
    Springer
    Journal of low temperature physics 105 (1996), S. 1123-1128 
    Details
    ISSN: 1573-7357
    Keywords: 74.25.Ha ; 74.76.Bz ; 74.80.−g ; 78.20.Ls ; 85.70.Sq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using a reflection magneto-optic technique we have investigated natural inhomogeneities and artificial structures in YBCO thin films exposed to an external magnetic field. The artificial structures were mechanically scratched by scanning a diamond tip with different loading over the film surface. Alternatively planar structures with reduced oxygen content could be patterned by heating the YBCO film with a focused laser beam in nitrogen atmosphere. Depending on the laser annealing parameters different screening properties concerning the applied magnetic field could be achieved. As a magneto-optically active layer we used EuS films evaporated on glass as well as bismuth- and gallium-doped lutetium-iron-garnet films grown onto (111) oriented gadolinium-gal lium-gar net substrates by liquid phase epitaxy. In contrast to measurements with EuS films that show only weak faraday rotation for temperatures higher than 20 K the magneto-optic studies have been expanded to about 60 K by using the garnet films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00753850
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