Crystal-field spectroscopy of PuO2: further complications in actinide dioxides
作者： S Kern , C -K Loong , G L Goodman , B Cort , G H Lander
DOI: 10.1088/0953-8984/2/7/024
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摘要: Neutron spectroscopy has been performed on a sample of PuO2, enriched to 94% with the non-absorbing isotope 242Pu, measure crystal-field potential. The authors find levels consistent weak-field case parameters recently derived for UO2 and NpO2, but inconsistent interpretation magnetic susceptibility measurements PuO2. In light these discrepancies they believe that conventional model is inadequate. PuO2 probably simplest material test any new ideas because ground state non-magnetic singlet.
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sci-hub.se 参考文章(16)
J. M. Friedt, F. J. Litterst, J. Rebizant, 25-K phase transition in NpO2 from 237Np Mössbauer spectroscopy. Physical Review B. ,vol. 32, pp. 257- 263 ,(1985) , 10.1103/PHYSREVB.32.257
S. Kern, C.-K. Loong, J. Faber, G.H. Lander, Neutron scattering investigation of the magnetic ground state of PrO2 Solid State Communications. ,vol. 49, pp. 295- 298 ,(1984) , 10.1016/0038-1098(84)90913-X
K.R. Lea, M.J.M. Leask, W.P. Wolf, The raising of angular momentum degeneracy of f-Electron terms by cubic crystal fields Journal of Physics and Chemistry of Solids. ,vol. 23, pp. 1381- 1405 ,(1962) , 10.1016/0022-3697(62)90192-0
S. Kern, C.-K. Loong, G. H. Lander, Crystal-field transitions inf-electron oxides Physical Review B. ,vol. 32, pp. 3051- 3057 ,(1985) , 10.1103/PHYSREVB.32.3051
G Raphael, R Lallement, Susceptibilite magnetique de PuO2 Solid State Communications. ,vol. 6, pp. 383- 385 ,(1968) , 10.1016/0038-1098(68)90162-2
M.-D. Guo, A.T. Aldred, S.-K. Chan, Magnetic susceptibility and crystal field effects of rare-earth orthovanadate compounds Journal of Physics and Chemistry of Solids. ,vol. 48, pp. 229- 235 ,(1987) , 10.1016/0022-3697(87)90017-5
J. R. Moore, S. E. Nave, R. C. Hart, W. R. Wilmarth, R. G. Haire, J. R. Peterson, Crystal-field anisotropy in the magnetic susceptibility of single-crystalCfCl3 Physical Review B. ,vol. 38, pp. 2695- 2702 ,(1988) , 10.1103/PHYSREVB.38.2695
G. Amoretti, A. Blaise, R. Caciuffo, J. M. Fournier, M. T. Hutchings, R. Osborn, A. D. Taylor, 5f-electron states in uranium dioxide investigated using high-resolution neutron spectroscopy. Physical Review B. ,vol. 40, pp. 1856- 1870 ,(1989) , 10.1103/PHYSREVB.40.1856
G. Dolling, R. A. Cowley, A. D. B. Woods, THE CRYSTAL DYNAMICS OF URANIUM DIOXIDE Canadian Journal of Physics. ,vol. 43, pp. 1397- 1413 ,(1965) , 10.1139/P65-135
S. Kern, J. Morris, C. K. Loong, G. L. Goodman, G. H. Lander, B. Cort, Neutron inelastic experiments on actinide dioxides: Search for crystal‐field levels in NpO2 Journal of Applied Physics. ,vol. 63, pp. 3598- 3600 ,(1988) , 10.1063/1.340706