X-ray absorption and resonant inelastic x-ray scattering in the rare earths

Details X-ray absorption and resonant inelastic x-ray scattering in the rare earths X-ray absorption and resonant inelastic x-ray scattering in the rare earths

1997-03-07

arxiv.org/abs/cond-mat/9703077v1

Physics

Condensed Matter

Materials Science

12 pages, LaTeX, 7 figures, submitted to Physical Review B

Scientific paper

10.1103/PhysRevB.58.3741

This paper makes a comparison between x-ray absorption (XAS) and resonant inelastic x-ray scattering (RIXS) in the rare earths. Atomic calculations are given for 2p -> 4f and 2p -> 5d XAS. The latter calculation includes the contraction and expansion of the 5d orbitals resulting from the complete exchange interaction with the 4f electrons. The radiative decay of the XAS final states is described for the situations where the core hole created in the absorption process is filled by a valence electron or by an electron from a shallower core level. RIXS spectra, 4f^n -> _{3d} 4f^{n+1} -> 4f^n,integrated over the outgoing photon energy (fluorescence yield) are compared with 3d -> 4f XAS. Sum rules related to XAS and RIXS and their applicability are discussed.

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