Why is the spin-orbit splitting of Si not visible in the Si2p XPS specrtum of SiO?

XPS spectra of the Si2p core level usually show the spin-orbit splitting of this level (1/2 and 3/2). In the case of SiO_x, all spectra I have found show a particulary narrow component, which...

30 August 2022 3,306 4 View