L. Andrew Wray, Wanli Yang, Hiroshi Eisaki, Zahid Hussain, Yi-De Chuang
Resonant inelastic X-ray scattering (RIXS) spectra of model copper- and nickel-based transition metal oxides are measured over a wide range of energies near the M-edge (h$\nu$=60-80eV) to better understand the properties of resonant scattering involving shallow core levels. Standard multiplet RIXS calculations are found to deviate significantly from the observed spectra. However, by incorporating the self-consistently calculated decay lifetime for each intermediate resonance state within a given resonance edge, we obtain dramatically improved agreement between data and theory. Our results suggest that these textured lifetime corrections are generic and significant for widely used resonant scattering spectroscopies.
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http://arxiv.org/abs/1207.1948
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