Journal Article10.1103/PHYSREVA.58.1840
Influence of changes in the valence electronic configuration on the k beta-to-k alpha x-ray intensity ratios of the 3d transition metals
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TL;DR: Very extensive multiconfiguration Dirac-Fock calculations including the transverse (Breit) interaction and quantum electrodynamics corrections have been carried out for all $3d$ transition metals to explain reliably the dependence of x-ray intensity ratios on the changes in configurations of the valence electrons as discussed by the authors.
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Abstract: Very extensive multiconfiguration Dirac-Fock calculations including the transverse (Breit) interaction and quantum electrodynamics corrections have been carried out for all $3d$ transition metals to explain reliably the dependence of $K\ensuremath{\beta}$-to-$K\ensuremath{\alpha}$ x-ray intensity ratios on the changes in configurations of the valence electrons. For all considered atoms the greatest values of the $K\ensuremath{\beta}$-to-$K\ensuremath{\alpha}$ intensity ratios are for ${3d}^{m\ensuremath{-}2}{4s}^{2}$ configuration type, then for ${3d}^{m\ensuremath{-}1}{4s}^{1},$ and the smallest values are for ${3d}^{m}$ type. It has been found that for each type of electronic configuration the $K\ensuremath{\beta}$-to-$K\ensuremath{\alpha}$ intensity ratios increase evidently with the atomic number and for a particular atom they are quite sensitive to the changes of the valence electronic configuration. The greatest relative increase of the $K\ensuremath{\beta}$-to-$K\ensuremath{\alpha}$ intensity ratios (4%) as a result of transition from electronic configuration of the ${3d}^{m\ensuremath{-}1}{4s}^{1}$ type to the ${3d}^{m\ensuremath{-}2}{4s}^{2}$ type takes place for Sc and the smallest relative increase (2%) takes place for Cu. The presented results make it possible to carry out reliable interpretation of various experimental $K\ensuremath{\beta}$-to-$K\ensuremath{\alpha}$ x-ray intensity ratios for $3d$ transition metals in their compounds and alloys and can also provide quantitative information about the changes of the valence electronic configurations of these metals in considered systems.
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Citations
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Chemical effects on K beta /K alpha X-ray intensity ratios in coordination compounds of some 3d elements
TL;DR: In this article, the effects of changes in coordination number on K beta /K alpha X-ray intensity ratio have been studied experimentally and the measured results indicate that the K beta/K alpha ratios for compounds with tetrahedral symmetry are in general larger than those with octahedral symmetry.
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Theoretical multiconfiguration Dirac-Fock method study on the x-ray spectra of multiply ionized heavy atoms: The structure of the K. cap alpha. L/sup n/ lines
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Kβ/Kα intensity ratios for X-ray production in 3d elements by photoionisation and electron capture
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