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Open Access Publications from the University of California

Separate measurement of the 5f 5/2 and 5f 7/2 unoccupied density of states of UO 2

  • Author(s): Tobin, JG
  • Nowak, S
  • Booth, CH
  • Bauer, ED
  • Yu, SW
  • Alonso-Mori, R
  • Kroll, T
  • Nordlund, D
  • Weng, TC
  • Sokaras, D
  • et al.

Coupling High Energy Resolution Fluorescence Detection (HERFD) with electric dipole selection rules, the uranium 5f and 5f Unoccupied Densities of States (UDOS) have been determined in UF , UO and UCd . Striking changes were observed between UF (5f ) to UCd (5f ), consistent with the Intermediate Coupling Model. Results for UO were confirmed by Bremstrahlung Isochromat Spectroscopy (BIS). This new approach can be a powerful tool for shedding light on the hidden mysteries of Actinides 5f-electrons properties. 5/2 7/2 4 2 11 4 11 2 2 3

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