Neutron inelastic scattering with the chopper spectrometers at IPNS has been used to measure, for the first time, the ground to excited crystal-field transitions in PrO/sub 2/ (130 meV), BaPrO/sub 3/ (255 meV), and UO/sub 2/ (approx.160 meV). From these measurements we deduce the values of V/sub 4/ = A/sub 4/ (r/sup 4/) and compare both the absolute values and their variation with theoretical estimates. In the case of UO/sub 2/ two peaks are seen, one at 155 and the other at 172 meV. This structure exists both below and above T/sub N/ (30.8K) and we believe is caused by …
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Neutron inelastic scattering with the chopper spectrometers at IPNS has been used to measure, for the first time, the ground to excited crystal-field transitions in PrO/sub 2/ (130 meV), BaPrO/sub 3/ (255 meV), and UO/sub 2/ (approx.160 meV). From these measurements we deduce the values of V/sub 4/ = A/sub 4/ (r/sup 4/) and compare both the absolute values and their variation with theoretical estimates. In the case of UO/sub 2/ two peaks are seen, one at 155 and the other at 172 meV. This structure exists both below and above T/sub N/ (30.8K) and we believe is caused by a dynamic Jahn-Teller effect that splits the excited GAMMA/sub 3/ state. 10 refs., 2 figs., 1 tab.
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Kern, S.; Loong, C.K. & Lander, G.H.High-Energy Neutron Spectroscopy on F-Electron Oxides,
article,
January 1, 1985;
Fort Collins, Colorado.
(https://digital.library.unt.edu/ark:/67531/metadc1072259/:
accessed July 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.