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X-ray absorption L-III and M-V edges of hexavalent lower actinide

Abstract : X-ray absorption spectroscopy is used to probe the electronic and structural features of the actinides. To better understand the effect of the effective charge and polyhedron on the edge structure, we discuss the L-m and M-v edges in AnO(2)(NO3)(2)(TBP)(2) (where the actinide is shortly linked to the 'yl' oxygens) and in the perovskite Ba(2)ZnAnO(6) (where the hexavalent actinide is in the cubic structure as An(6+)), An = U, Np, Pu. Using FEFF8 simulations, both features and position of the L-m and M-v edges are explained within a crystal field splitting of the orbitals picture and a multiple scattering picture.
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http://hal.in2p3.fr/in2p3-00006470
Contributor : Suzanne Robert <>
Submitted on : Monday, October 9, 2000 - 4:55:29 PM
Last modification on : Wednesday, September 16, 2020 - 4:00:37 PM

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  • HAL Id : in2p3-00006470, version 1

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C. Denauwer, E. Simoni, S.D. Conradson, J.M. de Leon, P. Moisy, et al.. X-ray absorption L-III and M-V edges of hexavalent lower actinide. Comptes Rendus de l'Academie des Sciences Serie II, 2000, C3, pp.327-333. ⟨in2p3-00006470⟩

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