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Uranium oxides inve...
Uranium oxides investigated by X-ray absorption and emission spectroscopies
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- Magnuson, Martin, 1965- (författare)
- Uppsala universitet,Fysik II,Uppsala University
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- Butorin, Sergei (författare)
- Uppsala universitet,Fysik II
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- Werme, Lars (författare)
- Uppsala universitet,Fysik II,Uppsala University
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- Nordgren, Joseph (författare)
- Uppsala universitet,Fysik II,Uppsala University
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- Ivanov, Kirill E. (författare)
- RRC Kurchatov Institute, Moscow
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- Guo, Jinghua (författare)
- Lawrence Berkeley National Laboratory, Berkeley, USA
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- Shuh, David K. (författare)
- Lawrence Berkeley National Laboratory, Berkeley, USA
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(creator_code:org_t)
- Elsevier BV, 2006
- 2006
- Engelska.
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Ingår i: Applied Surface Science. - : Elsevier BV. - 0169-4332 .- 1873-5584. ; 252:115, s. 5615-6518
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Abstract
Ämnesord
Stäng
- X-ray absorption and resonant X-ray emission measurements at the O 1s edge of the uranium oxides UO2, U3O8 and UO3 are presented. The spectral shapes of the O Kα X-ray emission spectra of UO3 exhibit significant excitation energy dependence, from an asymmetric to a symmetric form, which differs from those of UO2 and U3O8. This energy dependence is attributed to a significant difference in the oxygen–uranium hybridization between two different sites in the crystal structure of UO3. The spectral shapes of UO2 and U3O8 are also found to be different but without significant energy dependence. The experimental spectra of the valence and conduction bands of the uranium oxides are compared to the results of electronic structure calculations available in the literature.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- X-ray absorption
- x-ray emission unranium oxide
- Condensed matter physics
- Kondenserade materiens fysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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