Kramers-Heisenberg and Weisskopf-Wigner descriptions of resonant X-ray Raman scattering

• An overview is presented of the theory of X-ray Raman scattering as originally formulated by Kramers and Heisenberg and by Weisskopf and Wigner. Two particular aspects of the theory are described in some detail; the formation of band profiles and the role of symmetry, These aspects are discussed in connection with recent results for atomic and molecular scatterers obtained in radiative and nonradiative scattering experiments conducted with 2nd and 3rd generation synchrotron radiation sources.

Nyckelord

resonant X-ray scattering

symmetry

spectral profiles

synchrotron radiation sources

polarized inelastic-scattering

symmetry-breaking

k-edge

vibrational structure

auger-spectra

hole states

channel interference

nuclear-dynamics

selection-rules

spectroscopy

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