Investigation of the join between the near edge and extended x-ray absorption fine structure

The L1 and L3 x-ray absorption fine structures from the same element in the same material were compared to illustrate the ‘‘join’’ between the x-ray absorption near edge structure (XANES) and the extended x-ray absorption fine structure (EXAFS). In the XANES region the two spectra differed because o...

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Veröffentlicht in:	Applied physics letters 1990-01, Vol.56 (2), p.192-194
Hauptverfasser:	LYTLE, F. W, GREEGOR, R. B
Format:	Artikel
Sprache:	eng
Schlagworte:	360204 - Ceramics, Cermets, & Refractories- Physical Properties CHALCOGENIDES COMPARATIVE EVALUATIONS Condensed matter: electronic structure, electrical, magnetic, and optical properties COUPLING ENERGY RANGE EV RANGE EV RANGE 10-100 Exact sciences and technology MATERIALS SCIENCE Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Other interactions of matter with particles and radiation OXIDES OXYGEN COMPOUNDS PHASE SHIFT Physics PRASEODYMIUM COMPOUNDS PRASEODYMIUM OXIDES RARE EARTH COMPOUNDS SELECTION RULES SPECTRA X-RAY SPECTRA
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Zusammenfassung:	The L1 and L3 x-ray absorption fine structures from the same element in the same material were compared to illustrate the ‘‘join’’ between the x-ray absorption near edge structure (XANES) and the extended x-ray absorption fine structure (EXAFS). In the XANES region the two spectra differed because of the different selection rules; however, the EXAFS spectra were very similar when adjusted for the phase shift. For the oxide samples investigated the L1,3 spectra were similar for E>20 eV which identifies the demarcation between XANES and EXAFS.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.103282