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  • 1990-1994  (1)
  • 1985-1989  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    The electronic structure of ordered Cu3Au(001) (1990)
    Springer
    The European physical journal 78 (1990), S. 295-300 
    Details
    ISSN: 1434-6036
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The electronic structure of the (001) face of ordered Cu3Au was studied using synchrotron radiation at BESSY, in the photon energy range 22–80 eV. The Cu 3d-derived bands in Cu3Au look like the foldedd-bands of fcc Cu metal. Three Au 5d-derived bands were observed at 5.0, 6.1 and 7.0 eV below the Fermi level, which showed no dispersion with change in photon energy. The Cu 3d- and the Au 5d-derived bands are found to be separated in energy. We have calculated self-consistent energy bands along the (001) direction using the fully relativistic LMTO method. Comparison of these bands with those experimentally determined shows good agreement. From the calculated bands along Γ−X the direction dependent densities of states were determined, which give a consistent account for the non-dispersive Au-bands.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01307849
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  • 2
    Digitale Medien
    Digitale Medien
    Comparative study of the electronic structure of the ordered and disordered Cu3Au (100) and Cu3Au (110) surfaces (1989)
    Springer
    The European physical journal 75 (1989), S. 235-243 
    Details
    ISSN: 1434-6036
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The influence of structural changes on the electronic structure has been investigated by a comparison of the angle-integrated valence and core level photoelectron spectra of ordered and disordered Cu3Au(100) and (110) surfaces. The total width of the Au 5d and Cu 3d bands does not change with the ordering state or surface orientation. The spectra for the (100) surface are compared with selfconsistent calculations and good agreement is found, for the ordered state, however with a 0.6 eV correction of the calculated Fermi level position. We observe three Au 5d derived bands at 5.1, 6.0 and 6.9 eV, in contrast to previous experimental findings. Our results indicate the existence of shortrange order above the critical temperature.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01308005
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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