Core-level and valence-band X-ray photoelectron diffraction in UO2(100)

X-ray photoelectron diffraction (XPD) effects have been studied in the U 4f, O 1s and valence-band spectra of UO2(100). A simple nearest-neighbor forward-scattering model adequately explains the intensity modulations which occur with changes in polar angle, θ. In the valence band, the U 5f and U 6p3/2 peaks and the O 2p band show very similar angular intensity variations showing that the O 2p band's intensity is largely U-orbital derived. (author)