Electron energy-loss near-edge structures

Van Aken, PA., Liebscher, B. and Styrsa, VJ. (1998) Quantitative determination of iron oxidation states in minerals using Fe L -edge electron energy-loss near-edge structure spectroscopy. Phys. Chem. Miner., 25, 323. 

Figure 12. Comparison of old generation TEM-spectrometer typical spectrum (top) with new generation TEM-spectrometer spectrum (bottom). (Reprinted from Ultramicroscopy 96, Mitterbauer C., Kothleitner G., Grogger W., Zandbergen FL, Freitag B., Tiemeijer P and Hofer F., Electron energy-loss near-edge structures of 3d transition metal oxides recorded at high-energy resolution, 469-480, Copyright (2003) with permission from Elsevier)...

Electron energy loss near edge structure. 

ELNES Electron energy-Loss Near-Edge Structure Similar to NEXAFS, except monoenergetic high-energy electrons 60-300 KeV excite core-holes. 

Electron Energy Loss Near-Edge Structure (ELNES)... 

Tafto, J., and J. Zhu (1982). Electron energy-loss near edge structure (ELNES), a potential technique in the studies of local atomic arrangements. Ultramicro. 9, 349—54. 

X-ray absorption near edge structure(XANES) and electron energy loss near edge structure(ELNES) show similar spectra, thus almost the same theoretical analysis is valid both for these spectroscopies. The careful analysis including higher excited atomic orbitals in the basis set reproduce very well the spectral structure even in details. The core-hole effects are sometimes very important in the excited state electronic state. The theoretical analysis by the cluster model calculation provides very useful information on the local electronic property and the micro structure. 

KEYWORDS transparent oxide conductors, chemical bondings, electron energy loss near edge structures (ELNES), indium oxides, oxygen vacancy... 

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