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

Abstract

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.

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

Cited by in corpus (4)

• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Magnetic circular dichroism of x-ray absorption spectroscopy at rare-earth L2,3 edges in RE2Fe14B compounds (RE = La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu)
• Angular dependence of resonant inelastic x-ray scattering: a spherical tensor expansion
• Multimagnon and multispinon $L_3$-edge RIXS spectra of an effective ${\tilde{J}}_1-{\tilde{J}}_2-{\tilde{J}}_3$ square lattice Heisenberg model