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  • 1975-1979  (8)
  • 1970-1974  (5)
  • 1930-1934  (2)
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Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 259 (1973), S. 323-332 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Mössbauer experiments on57Fe on the giant moment system Ni75-x Fe x Ga25 were performed. For various Fe concentrationsx the hyperfine fields, the isomeric shift, and the quadrupole splitting were measured. A saturation hyperfine field of 223 (2) kOe at the Fe atom substituting a Ga site and of 200 (2) kOe at the Fe atom substituting a Ni site were found.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 232 (1970), S. 256-267 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Time differentialγγ-angular correlation measurements have been performed to determine the electric interaction of the 2.3 MeVI=5− state of120Sn in different polycristalline antimony compounds. A calibration of the field gradient was achieved by Mößbauerexperiments with the 23.8 keVI=3/2+ state in119Sn using identical sources. From the ratio of the measured electric interactions the ratio of the quadrupole moments is deduced as: $$\left| {\frac{{Q(2.3{\mathbf{ }}MeV level,{\mathbf{ }}I = 5^ - ,^{120} Sn)}}{{Q(2.8{\mathbf{ }}keV level,{\mathbf{ }}I = {3 \mathord{\left/ {\vphantom {3 2}} \right. \kern-\nulldelimiterspace} 2}^ + ,^{119} Sn)}}} \right| = 2.86(15)$$ . Using 0.06 (2) b for the quadrupole moment of the 23.8 keV level in119Sn one gets for the quadrupole moment of the 2.3 MeV level in120Sn ¦Q(2.3 MeV level,I=5−,120Sn)¦=0.021 (8) b.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 248 (1971), S. 370-374 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract TheL-shell conversion coefficient of the 26 keV Mössbauer transition in161Dy has been determined to be αL=2.4 −0.2 +0.3 by coincidence techniques using high resolution Ge(Li) and Si(Li) detectors. With theoretical values for theM- andN-shells the total conversion coefficient is calculated to be αtot=2.9 −0.2 +0.3 .
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 30 (1978), S. 145-154 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The x-ray photoemission spectra of the valence band region of Be, Na, Mg, and Al have been measured and are analysed in terms of existing band structures. This allows an accurate determination of the band width of these metals and of the relative photoionisation cross sections (atħω γ=1487 eV) for the electrons of different angular momentum in the bands. It is found empirically that the many body effects in the valence bands are of similar magnitude as observed in the core level spectra.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The x-ray photoemission spectra of the valence bands of Hf metal and of several HfC x N y O z compounds have been measured and are compared to existing band structure calculations. The density of states at the Fermi energy of the HfC x N y O z compounds correlates strongly to their superconducting transition temperatureT c . A calculation of theT c values within the frame work of strong coupling superconductors indicates that the phonon spectrum and the electron phonon interaction is approximately constant within the series HfC x N y O z .
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 35 (1979), S. 51-59 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract X-ray excited photoelectron spectra (XPS) using monochromatized Al — K α radiation (ℏω =1,486.7 eV) have been analysed quantitatively. The intensities of the various core lines (Li(1s), O(1s), O(2s), Nb(3s), Nb(3p), Nb(3d), Nb(4s), Nb(4p)) normalized to the intensity of the Nb (3d 5/2)-line, show good agreement with those calculated with theoretical values for the photoabsorption cross section of the free atoms and the theoretical estimates of the dependance of the electron escape depth on the electron kinetic energy. From the energy loss spectra observed at the high binding energy side of the XPS core lines the energy loss function Im {−1/ε(ω)} is calculated and compared to published optical data. This comparison yields directly the total electron escape depth as function of the electron energy over a large energy range.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 30 (1978), S. 129-143 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The theory for the photoemission process is inspected taking into account many body effects. Simple equations for the analysis of experimental spectra are deduced which allow to determine the relative importance of the many body effects to the observed spectrum. The core level spectra for Be, Na, Mg and Al metal are analysed quantitatively yielding the magnitude of the intrinsic and extrinsic contribution to the plasmon creation.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    International archives of occupational and environmental health 5 (1934), S. 592-614 
    ISSN: 1432-1246
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of low temperature physics 26 (1977), S. 83-100 
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract From Mössbauer experiments on dilute sources of57Co in Mo the local moment behavior of the Kondo system Fe in Mo is obtained. In addition, impurity-impurity interactions are clearly seen from line broadening of the Mössbauer spectra, which depend on the preparation of the samples. The local magnetization deduced from the splitting of the Mössbauer spectra in external fields is identical for samples with differing impurity concentrations, indicating that it is characteristic of isolated Fe in Mo. The initial local susceptibility is in good agreement with earlier bulk magnetization data. The low-temperature susceptibility yields a Kondo temperature of about 0.2 K. On the other hand, the overall temperature dependence of the susceptibility is more complex than the simple Curie-Weiss law with saturation to a constant value at low temperatures known for typical Kondo systems such asCuFe.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of pest science 6 (1930), S. 125-128 
    ISSN: 1612-4766
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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