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Erschienen in:
1986 | OriginalPaper | Buchkapitel
Theory of EXAFS
verfasst von : Dr. Boon K. Teo
Erschienen in: EXAFS: Basic Principles and Data Analysis
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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Even though the basic physical explanation of EXAFS was provided by Kronig as being due to modification of the final state of the photoelectron by the crystal (Kronig, 1931) or, in the case of gaseous molecules, by atoms surrounding the excited atom (Kronig, 1932), a great deal of confusion still existed when this field was reviewed by Azaroff in 1963. The question arises as to whether a long-range order theory formulated in terms of Bloch waves (Kronig, 1931) or a short-range order theory in terms of scattering by neighboring atoms (Kronig, 1932, Hartree, et al. 1934, Shiraiwa, et al. 1958) is more appropriate. A major source of the confusion was that quantitative comparison between theory and experiment was difficult if not impossible at the time.