Advertisement

Il Nuovo Cimento D

, Volume 13, Issue 2, pp 203–210 | Cite as

Core level electron energy loss study of the PD-SI(111)2 × 1 Interface Formation

  • S. Turchini
  • A. M. Fiorello
  • S. Nannarone
  • P. Picozzi
  • S. Santucci
  • L. Lozzi
  • M. de Crescenzi
  • M. G. Betti
  • C. Mariani
  • U. del Pennino
Article
  • 20 Downloads

Summary

The structural and surface sensitivity of electron energy loss spectroscopy has been exploited to investigate the Pd-Si(lll)2 × 1 interface. We found the two M IV, V shallow edges of Pd suitable for an EELS study on the whole coverage range. EXAFSlike oscillations were detectable above the M IV, V edge for about 150 eV. These features together with the intensity ratio (M V/M IV) between the M V and M IV components showed a reproducible dependence vs. the thickness of the Pd film. From the analysis of the near edge part and the EXAFSlike oscillations a general indication of the formation of a compound very close to Pd2Si in the coverage range (5 ÷ 20) Å and the presence of a peculiar Pd-Si compound at coverages lower than 5 Å was obtained.

PACS

61.80 Radiation damage and other structure irradiation effects 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    C. Calandra, O. Bisi and G. Ottaviani: Surf. Sci. Rep., 4, 271 (1984).CrossRefGoogle Scholar
  2. [2]
    G. Rossi: Surf. Sci. Rep., 7, 1 (1987).CrossRefADSGoogle Scholar
  3. [3]
    L. Braicovich: Surf. Sci., 132, 315 (1983).CrossRefGoogle Scholar
  4. [4]
    P. J. Grunthaner and F. J. Grunthaner: Physica B, 117 and 118, 831 (1983).Google Scholar
  5. [5]
    P. S. Ho, P. E. Schmid and H. Foll: Phys. Rev. Lett., 46, 782 (1981).CrossRefADSGoogle Scholar
  6. [6]
    U. del Pennino, P. Sassaroli, S. Valeri and S. Nannarone: Surf. Sci., 122, 307 (1982).CrossRefGoogle Scholar
  7. [7]
    M. G. Betti, C. Rinaldi, P. Sassaroli, L. Sorba and S. Nannarone: Surf. Sci., 168, 204 (1986).CrossRefADSGoogle Scholar
  8. [8]
    G. Chiarello, E. Colavita, M. de Crescenzi and S. Nannarone: Phys. Rev. B, 29, 4878 (1984).CrossRefADSGoogle Scholar
  9. [9]
    M. de Crescenzi, L. Lozzi, P. Picozzi, S. Santucci, M. Benfatto and C. R. Natoli: Phys. Rev. B, 39, 8409 (1989).CrossRefADSGoogle Scholar
  10. [10]
    J. E. Muller, O. Jepsen and J. W. Wilkins: Solid State Comm., 42, 365 (1982).CrossRefADSGoogle Scholar
  11. [11]
    J. Barth, F. Gerken and C. Kunz: Phys. Rev. B, 28, 3608 (1983).CrossRefADSGoogle Scholar
  12. [12]
    [12]J. Fink, Th. Muller-Heinzerling, B. Scheerer, W. Speier, F. V. Hillebrecht, J. C. Fuggle, J. Zaanen and G. A. Sawatzky: Phys. Rev. B, 32, 4899 (1985); J. Zaanen, G. A. Sawatzky, J. Fink, W. Speier and J. C. Fuggle: Phys. Rev. B, 32, 4905 (1985).CrossRefADSGoogle Scholar
  13. [13]
    U. del Pennino, C. Mariani, S. Valeri, G. Ottaviani, M. G. Betti, S. Nannarone and M. de Crescenzi: Phys. Rev. B, 34, 2875 (1986).CrossRefADSGoogle Scholar
  14. [14]
    M. G. Betti, U. del Pennino, C. Mariani, A. M. Fiorello, M. Pedio, S. Perugini, S. Nannarone and M. de Crescenzi: Physica Scripta, 36, 153 (1987).CrossRefADSGoogle Scholar
  15. [15]
    G. Rossi, R. Jaeger, J. Stohr, T. Kendelewicz and I. Lindau: Phys. Rev. B, 27, 5154 (1983).CrossRefADSGoogle Scholar
  16. [16]
    S. Nannarone, A. M. Fiorello, U. del Pennino, C. Mariani, M. G. Betti and M. de Crescenzi: J. Vac. Sci. Technol. A, 5, 1474 (1987).CrossRefADSGoogle Scholar
  17. [17]
    G. Wendin: Phys. Rev. Lett., 53, 724 (1984).CrossRefADSGoogle Scholar
  18. [18]
    O. Bisi and K. N. Tu: Phys. Rev. Lett., 52, 1633 (1984).CrossRefADSGoogle Scholar
  19. [19]
    M. De Crescenzi, E. Colavita, V. Del Pennino, P. Sassaroli, S. Valeri, C. Rinaldi, L. Sorba and S. Nannarone: Phys. Rev. B, 32, 612 (1985).CrossRefADSGoogle Scholar

Copyright information

© Società Italiana di Fisica 1991

Authors and Affiliations

  • S. Turchini
    • 1
  • A. M. Fiorello
    • 1
  • S. Nannarone
    • 1
  • P. Picozzi
    • 2
  • S. Santucci
    • 2
  • L. Lozzi
    • 2
  • M. de Crescenzi
    • 3
  • M. G. Betti
    • 4
  • C. Mariani
    • 4
  • U. del Pennino
    • 4
  1. 1.Dipartimento di FisicaUniversità ≪La Sapienza≫RomaItalia
  2. 2.Dipartimento di FisicaUniversità dell'AquilaL'AquilaItalia
  3. 3.Dipartimento di FisicaUniversità di Roma II ≪Tot Vergata≫RomaItalia
  4. 4.Dipartimento di FisicaUniversità di ModenaModenaItalia

Personalised recommendations