Abstract
The electronic structures of nickel and copper have been studied for KMF3 and K2NaMF6 compounds by a-ray absorption spectroscopy at the Ni and Cu L-2.3 edges in order to characterize the M-F chemical bond. The spectral features have been interpreted based on the mixing of two ground-state configurations \3d(n)) +\3d(n+1)](L) under bar. Multiplet calculations were used to simulate each spectrum in order to quantify the charge transfer from fluorine to the transition metal yielding a 40% ground-state contribution of the 3d(8) configuration for K2NaCuF6 and 65% of the 3d(7) configuration for K2NaNiF6.
Original language | English |
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Article number | 125123 |
Number of pages | 6 |
Journal | Physical review. B, Condensed matter and materials physics |
Volume | 63 |
Issue number | 12 |
DOIs | |
Publication status | Published - 15 Mar 2001 |
Keywords
- TRANSITION-METAL COMPOUNDS
- ELECTRONIC-STRUCTURE
- K-EDGE
- SPECTRA
- PHOTOEMISSION
- LA2LI1/2CU1/2O4
- ND2LI1/2NI1/2O4
- PEROVSKITES
- VALENCE
- STATE