Open AccessProbability density of wave function of excited photoelectron: understanding XANES features
Author(s) -
Sipr Ondrej
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500016496
Subject(s) - xanes , excited state , wave function , spectral line , probability density function , photoelectric effect , atomic physics , x ray photoelectron spectroscopy , function (biology) , physics , materials science , computational physics , chemistry , optics , mathematics , statistics , nuclear magnetic resonance , quantum mechanics , evolutionary biology , biology
Interpretation of XANES spectra suffers from a poor intuitive understanding of the relation between spectral features and structural elements of a material. An attempt to alleviate this shortcoming is made by exploring a spatial distribution of probability density of wave functions of photoelectrons excited during the photoabsorption process. One has to add incoherently squares of wave functions which describe participating photoelectron diffraction (PED) processes, weighted by normalized PED cross sections. As an example, we investigate probability density of wave functions relevant to Ag L 1 and L 3 XANES of Ag 2 O.