The Influence of the Chemical State on K x-RayIntensities

Autor:	G. L. Borchert, T. Rose, O. W. B. Schult
Rok vydání:	1984
Předmět:	Chemical state Materials science General Physics and Astronomy Physical chemistry Physical and Theoretical Chemistry Mathematical Physics
Zdroj:	Zeitschrift für Naturforschung A. 39:924-929
ISSN:	1865-7109 0932-0784
DOI:	10.1515/zna-1984-1002
Popis:	The x-ray intensities of the Kβ and KO lines relative to the Kα1, transition were measured with high accuracy for the pairs La2O3-La, SmS-Sm, Sm2O3-Sm and Ta2O5-Ta. The Kβ13 and Kβ24 lines do not show significant intensity shifts. However, the intensity of the KO line is in La2O3 (15.0 ±4.7)% higher, in SmS (6.9 ± 2.7)% lower and in Ta2O5 (12.5 ± 8.7)% higher than that emitted from the corresponding metal. These results can be reproduced by Dirac-Fock-calculations, where the KO-intensities show a typical dependence on the quantum numbers of the valence electrons. The observed shifts indicate a 4f-5d hybridization or promotion in metallic Lanthanum and suggest the missing of a 4f electron in metallic Samarium compared to the free atom.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d37d673dcddb420722a4974b4acd8db8 https://doi.org/10.1515/zna-1984-1002 Zobrazit plný text záznamu