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Proceedings Paper

Determination of the electron momentum distribution in Al2O3 using x-ray noncoherent scattering data
Author(s): J. Jakimavicius; Romaldas Purlys
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Paper Abstract

Valence electron momentum distribution functions of ionic oxide Al2O3 were investigated using the measured and calculated Compton profiles. Compton lines were measured using the X-ray three-crystal spectrometer. The scattering angle was 155 degrees. Monochromatic AgK and M0 ((lambda) equals 0,056 nm, hv equals 22,46 keV) radiation was used. Monochromatization of X-ray radiation was achieved by using Ceylon graphite. LiF served as the crystal-analyzer. The measured Compton lines were normalized using noncoherent scattering factors calculated taking into account ionization of atoms. It was found that, although ionic binding predominates in Al2O3 crystal lattice, experimental results are best explained by a theoretical model based on an assumption that one of electrons lost by aluminum does not participate in ionic binding with oxygen.

Paper Details

Date Published: 10 April 2001
PDF: 5 pages
Proc. SPIE 4415, Optical Organic and Inorganic Materials, (10 April 2001); doi: 10.1117/12.425500
Show Author Affiliations
J. Jakimavicius, Vilnius Technical Univ. (Lithuania)
Romaldas Purlys, Vilnius Univ. (Lithuania)


Published in SPIE Proceedings Vol. 4415:
Optical Organic and Inorganic Materials
Steponas P. Asmontas; Jonas Gradauskas, Editor(s)

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