XANES and ELNES in Ceramic Science

Both X‐ray absorption near edge structures (XANES) and electron energy loss near edge structure (ELNES) are important tools in ceramic science offering information on local environment of selected elements not only in crystals but also in amorphous materials. Recent technological progress enables me...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2005-08, Vol.88 (8), p.2013-2029
Main Authors: Tanaka, Isao, Mizoguchi, Teruyasu, Yamamoto, Tomoyuki
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Ceramics
Chemical industry and chemicals
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Electron and ion emission by liquids and solids
impact phenomena
Electron energy loss spectra
Electron energy loss spectroscopy
Electrons
Exact sciences and technology
Impact phenomena (including electron spectra and sputtering)
Physics
Structure of solids and liquids
crystallography
Technology
X-ray absorption spectroscopy: exafs, nexafs, xanes, etc
X-ray diffraction and scattering
X-rays
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Summary:Both X‐ray absorption near edge structures (XANES) and electron energy loss near edge structure (ELNES) are important tools in ceramic science offering information on local environment of selected elements not only in crystals but also in amorphous materials. Recent technological progress enables measurements of XANES of ppm‐level dopants using modern synchrotron facilities. Combined with transmission electron microscopy, ELNES can be used to analyze the local structures with subnanometer spatial resolution. First principles methods to reproduce and interpret the spectra have been established just recently. When a core‐hole is adequately taken into account, most of K‐edge spectra can be well reproduced using a modern band‐structure method within one‐electron approximation. The same is true for L2, 3‐edge spectra of non‐transition metal compounds. However, multi‐electron calculations are mandatory to reproduce L2, 3‐edge spectra of 3d transition‐metal elements because of strong electronic correlations. In this paper, some recent results obtained in our group by the combination of XANES/ELNES experiments and theoretical calculations are reviewed.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2005.00547.x