Comparison of branching ratio and sum-rule analyses of magnetic circular dichroism in x-ray-absorption spectroscopy

Journal Article · Fri Sep 01 00:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.52.6530· OSTI ID:119413

Tobin, J G ^[1]; Waddill, G D ^[2]; Jankowski, A F ^[1]; Sterne, P A ^[1]; Pappas, D P ^[3]

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1. Department of Chemistry and Materials Science, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. Department of Physics, University of Missouri, Rolla, Missouri 65401-0249 (United States)
3. Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284-2000 (United States)

Two localized picture methods of analyzing the magnetic circular dichroism in x-ray absorption will be applied to experimental results: the branching ratio (BR) and sum rule (SR) approaches. A derivation of the BR formulas and detailed comparison to the SR expressions will be made, including error estimations. The BR approach will be seen to be a limiting case form of the SR spin-moment expression and provide a simple picture of the underlying physics in magnetic x-ray circular dichroism absorption in 3{ital d} magnetic materials.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 119413
• Journal Information: Physical Review, B: Condensed Matter, Vol. 52, Issue 9; Other Information: PBD: 1 Sep 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MAGNETIC CIRCULAR DICHROISM
ABSORPTION SPECTROSCOPY
BRANCHING RATIO
SUM RULES
X RADIATION
MAGNETIC MATERIALS
THREE-DIMENSIONAL CALCULATIONS