Low-energy plasmonKβ′satellite in theKβ1,3x-ray emission spectra of Mn, Cr, and their compounds

Using plasma oscillations in solids' theory, the energy separation and relative intensity of the $K{\beta }^{\prime }$ satellites of the $K{\beta }_{1,3}$ x-ray emission line of Mn, MnO, Mn${\mathrm{O}}_2$, Cr, Cr${\mathrm{O}}_3$, ${\mathrm{K}}_2$Cr${\mathrm{O}}_4$, and ${\mathrm{K}}_2$ ${\mathrm{Cr}}_2$ ${\mathrm{O}}_7$ have been calculated. Our calculated values agree better with the experimentally observed values than the values calculated by Tsutsumi et al. from molecular-orbital theory. This suggests that the possible origin of the $K{\beta }^{\prime }$ satellite may be plasmon oscillations in solids.