Determination of Charge and Level Shift of Manganese in Some Manganese Chemicals and Ores by X-Ray Emission Spectroscopy

概要

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X-ray emission spectra usually give a direct picture of the occupied states above Fermi level and the K emission band reflects the distribution of electrons of p-symmetry in the outer levels. The '3d' transition metal compounds exhibit a wide variety of properties due to their valence band consisting of s, p and d like states. These 'd' states are strongly localised and influence the properties of the compounds through s-d, p-d hybridization. In the present investigation, the level shift of the 2p_<3/2> states of Mn in MnO_2, MnPO_4, MnSO_4, KMnO_4, δ-MnO_2, Mn-Nodule and BCS-Mn-Ore has been determined. Besides, the spectrum of Mn has been resolved into several bands like A, B, F, G and X following the Gaussian peak assumption. It has been found that the binding energies of all chemicals and ores except KMnO_4 show higher value compared to pure Mn 2p_<3/2> state and quadrupole transitions have negligible effect on the X-ray transitions.
社団法人応用物理学会の論文
1990-07-20