Cuprate core-level line shapes for different Cu-O networks.

Karlsson K., Gunnarsson O., Jepsen O.

Hogskolan Skovde Inst Nat Vetenskap S-54128 Skovde Sweden 
Max Planck Inst Festkorperforsch D-70506 Stuttgart Germany 

We have studied the Cu core-level photoemission spectra in the Anderson impurity model for cuprates with different Cu-O networks, dimensionalities (zero, one, two, and three) and Cu valencies (two and three). We focus on the shape of the leading peak and obtain very good agreement with the experimental data. We show how the shape of the spectrum is related to the valence electronic structure and the Cu-O network but also that other atoms can play a role. 

A reprint of this paper can be obtained from cond-mat in Germany or in the US

Physical Review Letters, 82 3528-3531, 1999.

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