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The Connection of Sum Rule and Branching Ratio Analyses of Magnetic X-Ray Circular Dichroism in 3d Systems

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Abstract

In the recent past, Carra, et al. derived a sum rule for electric dipole transitions in a single ion model that could be used to extract an elementally-specific spin-magnetic-moment (μSPIN) from magnetic x-ray circular dichroism (MXCD) spectra. Earlier, we proposed the utilization of a branching ratio analysis for the determination of μSPIN, based upon a simplified oneelectron, atomic picture which assumed complete orbital quenching. Here, it will be shown that these two approaches are essentially related in the case of 3d ferromagnetic materials. Both methods are based upon a comparison of the integrated intensity in the L3(J=3/2) white line peak versus the sum of the intensities in the L3(J=3/2) and L2(J=l/2) peaks, after background removal. An error estimate will also be presented. A more complete description of our work is under preparation.

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Authors and Affiliations

  1. Chemistry and Materials Science Department, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA

    J.G. Tobin & A.F. Jankowski

  2. Department of Physics, University of Missouri-Rolla, Rolla, MO, 65401-0249, USA

    G.D. Waddill

  3. Department of Physics, University of California-Davis, Davis, CA, 95616, USA

    P.A. Sterne

  4. Department of Physics, Virginia Commonwealth University, Richmond, VA, 23284-2000, USA

    D.P. Pappas

Authors
  1. J.G. Tobin
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  2. G.D. Waddill
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  3. A.F. Jankowski
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  4. P.A. Sterne
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  5. D.P. Pappas
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Tobin, J., Waddill, G., Jankowski, A. et al. The Connection of Sum Rule and Branching Ratio Analyses of Magnetic X-Ray Circular Dichroism in 3d Systems. MRS Online Proceedings Library 384, 457–460 (1995). https://doi.org/10.1557/PROC-384-457

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  • DOI: https://doi.org/10.1557/PROC-384-457

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