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An analytical model for the photoelectron energy distribution function for cubic d-band perovskites is presented, which includes the effects of differences in the p and d electron cross sections and plasmon excitation due to many-body interactions. The model provides a simple method for interpreting x-ray-photoemission data in terms of band structure. Excellent agreement between experiment and theory is demonstrated for both SrTiO₃ and Na0.8WO₃.
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Wolfram et al. (1979) studied this question.
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