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Chemical Effect on X-Ray Absorption-Edge Fine Structure

Published online by Cambridge University Press:  06 March 2019

E. W. White  and
H. A. McKinstry
E. W. White
Affiliation:
Materials Research Laboratory, Pennsylvania State University University Park, Pennsylvania
H. A. McKinstry
Affiliation:
Materials Research Laboratory, Pennsylvania State University University Park, Pennsylvania
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Abstract

Existing theories of X-ray absorption-edge fine structure do not adequately explain details of spectra observed for solids. However, the possibility that X-ray absorption spectra might eventually be used as tools for the characterizatiori of new insulator materials has prompted the study of an extensive selection of simple oxides of known chemistry and structure. The complete K absorption fine structure has been measured for some forty simple oxides of six elements of the fourth period. The L absorption-edge spectra have been measured for metallic lead and several lead oxides. The several isostructurat and polymorphic sets included among these oxides, as well as the Magnéli phases for three of the elements, have made it possible to study the effects of valence, coordination number, electron configuration, and crystal structure. The applicability of current theories of the fine structures are discussed in the light of these findings. An automated single-crystal spectrometer is described.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 9: Fourteenth Annual Conference on Applications of X-ray Analysis, August 25-27, 1965 , 1965 , pp. 376 - 392
Copyright
Copyright © International Centre for Diffraction Data 1965

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