The infrared dielectric response of UO2 has been determined by reflection electron energy-loss spectroscopy. One resonance frequency, ωTO, is found at 278 cm–1 with oscillator strength Δε= 16.8 and damping γ= 38 cm–1. Resonant scattering from the 5f unoccupied orbitals is observed in the energy-loss intensities.
P. A. Thiry, J. Pireaux, R. Caudano, J. R. Naegele, J. Rebizant and J. Spirlet, J. Chem. Soc., Faraday Trans. 2, 1987, 83, 1229 DOI: 10.1039/F29878301229
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