Applicability of the Spin-orbit Sum Rule for the Actinide 5? States

Technical Report · Tue Jan 27 00:00:00 EST 2004

DOI:https://doi.org/10.2172/15013862· OSTI ID:15013862

Chung, B; Tobin, J; Moore, K; der Laan, G v; Schwartz, A; Wall, M

The branching ratio of core-valence transitions in x-ray absorption spectroscopy and electron energy loss spectroscopy is linearly related to the expectation value of the spin-orbit operator of the valence states. Here, we analyze the measured branching ratio of the N{sub 4,5} edges acquired by electron energy-loss spectroscopy in a transmission electron microscope, and synchrotron-radiation-based x-ray absorption. Results show that the spin-orbit sum rule can be applied to actinide 5f states, where the accuracy can be increased using the correction term obtained from atomic many-electron calculations.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15013862
• Report Number(s): UCRL-TR-202444; TRN: US200803%%949
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
ACTINIDES
BRANCHING RATIO
ELECTRON MICROSCOPES
ENERGY-LOSS SPECTROSCOPY
EXPECTATION VALUE
SUM RULES
SPIN