EFFECTS OF MANY-BODY INTERACTIONS IN EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY (EXAFS)

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Abstract

Abstract : We present the first a priori derivation of a many-body theory for EXAFS with clearly defined approximations and with final expressions which are feasible for quantitative evaluations. We conclude that the conventional EXAFS expression should be complemented with a term that crudely is the main term, energy-shifted and scaled down by a factor of order 0.2-0.3. Further the f-factors depend significantly, not only on the scattering properties of the individual ions, but also on the electron energy-loss properties of the material itself.

Detaljer

Författare
  • Witold Bardyszewski
  • Lars Hedin
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Den kondenserade materiens fysik
Originalspråkengelska
Titel på värdpublikationJournal de Physique Colloques
RedaktörerNot Known
Sidor1101-1104
Volym48 (C9)
StatusPublished - 1987
PublikationskategoriForskning
Peer review utfördJa

Publikationsserier

Namn
Volym48 (C9)