Theoretical description of the Fano-effect in the angle-integrated valence-band photoemission of paramagnetic solids
2001 (English)In: Applied Physics A: Materials Science & Processing, ISSN 0947-8396, E-ISSN 1432-0630, Vol. 73, no 6, 663-666 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2001. Vol. 73, no 6, 663-666 p.
spin-dependent potentials, dirac-equation, manipulation
IdentifiersURN: urn:nbn:se:kth:diva-21131ISI: 000172407900002OAI: oai:DiVA.org:kth-21131DiVA: diva2:339828
QC 201005252010-08-102010-08-10Bibliographically approved