High-resolution neutron spectroscopy of crystal-field excitations in uranium dioxide
- 20 September 1988
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 21 (26) , L931-L937
- https://doi.org/10.1088/0022-3719/21/26/003
Abstract
The authors report the results of a high-resolution inelastic neutron scattering measurement of the crystal-field excitations in uranium dioxide. All the dipole-allowed transitions within the lowest multiplet have been measured, allowing the first complete determination using neutron scattering of the crystal-field potential and J-mixing wavefunctions in an actinide compound. The splitting of the cubic crystal-field levels in the antiferromagnetic phase below TN=30.8 K is discussed, and compared with calculations made assuming either a 2-k or a 3-k magnetic structure.Keywords
This publication has 10 references indexed in Scilit:
- Theoretical analysis of the 3-k magnetic structure and distortion of uranium dioxideJournal of Magnetism and Magnetic Materials, 1987
- A high-resolution neutron scattering investigation of the crystal field splittings of UO2Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1987
- Neutron diffraction on actinidesJournal of the Less Common Metals, 1986
- Crystal-field transitions inf-electron oxidesPhysical Review B, 1985
- Electronic transitions, crystal field effects and phonons in UO2Physics Reports, 1980
- Neutron diffraction study of U: Antiferromagnetic statePhysical Review B, 1976
- Theory of lanthanide crystal fieldsAdvances in Physics, 1971
- Studies of the Dynamical Jahn-Teller Effect on Static Magnetic SusceptibilityJournal of the Physics Society Japan, 1970
- Spin-Lattice Interaction in U. I. Ground-State and Spin-Wave ExcitationsPhysical Review B, 1968
- A crystal field calculation in uranium dioxideJournal of Physics and Chemistry of Solids, 1966