Dynamic screening in L_2,3-shell transition metal x-ray absorption

Details Dynamic screening in L_2,3-shell transition metal x-ray absorption Dynamic screening in L_2,3-shell transition metal x-ray absorption

2002-03-05

arxiv.org/abs/cond-mat/0203097v1

Physics

Condensed Matter

Materials Science

10 pages, 3 encapsulated PostScript figures (LaTeX-RevTeX4); submitted to Physical Review Letters

Scientific paper

Calculations of L-shell x-ray absorption in transition metals are shown to be sensitive to screening, both of the x-ray field and the photoelectron-core hole interaction. This screening is calculated using a generalization of the time dependent local density approximation and a projection onto a local atomic basis. The approach yields renormalized dipole-matrix elements which account for the observed deviations of the L_3/L_2 branching ratio from the 2:1 value of independent electron theory.

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