Abstract
We present the O 1s and V 2p absorption edges of VO2 at room temperature and at T = 120-degrees-C, i.e., below and above the metal-insulator transition temperature T(c) almost-equal-to 67-degrees-C. The O 1s spectra show a clear splitting of 1 eV in the unoccupied d-parallel-to band below T(c). Because the V 2p absorption edges are dominated by the V 2p-3d interaction in the final state, these spectra show minor changes that cannot be easily correlated with the changes in the unoccupied density of states.
Original language | English |
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Pages (from-to) | 7263-7267 |
Number of pages | 5 |
Journal | Physical review. B, condensed matter |
Volume | 43 |
Issue number | 9 |
Publication status | Published - 15 Mar 1991 |
Externally published | Yes |
Keywords
- METALLIC VO2
- OXIDES
- SPECTROSCOPY
- ENERGY
- MONOCHROMATORS
- PHOTOELECTRON
- INSULATOR
- SPECTRA
- LINES
- NBO2