Cu 3d9 - Ligand Hole Configuration In Yba2cu3o - 7 By X-ray Spectroscopies
- A. BIANCONI
- A. CLOZZA
- A. C. CASTELLANO
- S. DELLA LONGA
- M. DE SANTIS
- K. GARG
- P. DELOGU
- A. GARGANO
- R. GIORGI
- P. LAGARDE
- A. M. FLANK
- A. MARCELLI
- DI CICCO, Andrea
DOIAbstract
Cu K edge and L3 edge x-ray absorption near edge structure (XANES) and Cu L3 x-ray photoelectron spectroscopy (XPS) of YBa2Cu3O7 have been measured to determine the local electronic structure. The K-edge XANES have been interpreted by multiple scattering approach. The data show the formation of the 3d9L (where L is a hole in the oxygen derived band, ligand hole ) many body configuration in the initial state of the superconducting oxide
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