Applied Physics A

, Volume 73, Issue 6, pp 663–666 | Cite as

Theoretical description of the Fano-effect in the angle-integrated valence-band photoemission of paramagnetic solids

  • J. Minár
  • H. Ebert
  • L.H. Tjeng
  • P. Steeneken
  • G. Ghiringhelli
  • O. Tjernberg
  • N.B. Brookes

Abstract.

A theoretical description of the Fano-effect in the angle-integrated valence-band photoemission (VB XPS) of paramagnetic solids is presented that is based on the one-step model of photoemission and relativistic multiple scattering theory. Applications to fcc-Cu and fcc-Ag led to a very satisfying agreement with recent experimental data that show the Fano-effect, i.e., a finite spin polarisation of the photoelectrons is found for excitation with circularly polarised radiation. As can be demonstrated by model calculations, this finding is caused by the presence of spin–orbit coupling. To allow for a more detailed discussion of the spectra, a simplified description of the Fano-effect is presented that treats spin–orbit coupling as a perturbation.

PACS: 71.15.Rf; 71.20.Be; 82.80.Pv; 71.70.Ej 

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Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • J. Minár
    • 1
  • H. Ebert
    • 1
  • L.H. Tjeng
    • 2
  • P. Steeneken
    • 2
  • G. Ghiringhelli
    • 3
  • O. Tjernberg
    • 4
  • N.B. Brookes
    • 5
  1. 1.Department Chemie, Physikalische Chemie, Universität München, Butenandtstr. 5–13, 81377 München, GermanyDE
  2. 2.Solid State Physics Laboratory, Materials Science Centre, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The NetherlandsNL
  3. 3.Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, 20133 Milano, ItalyIT
  4. 4.Material Physics, Royal Institute of Technology, 100 44 Stockholm, SwedenSE
  5. 5.European Synchrotron Radiation Facility, Boîte Postale 220, 38043 Grenoble Cedex, FranceFR

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