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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Went, M. R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (3/3 displayed)
- 2007Electron inelastic mean free path in solids as determined by electron Rutherford back-scatteringcitations
- 2007Metal interface formation studied by high-energy reflection energy loss spectroscopy and electron Rutherford backscatteringcitations
- 2005Spectral momentum densities of vanadium and vanadium oxide as measured by high energy (e, 2e) spectroscopycitations
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article
Spectral momentum densities of vanadium and vanadium oxide as measured by high energy (e, 2e) spectroscopy
Abstract
<p>The spectral momentum densities of vanadium metal and V<sub>2</sub>O <sub>3</sub> are measured by electron momentum spectroscopy. Results are compared with band structure calculations based on density functional theory (DFT). Qualitatively, the agreement between theory and experiment is good. The calculated total band width of vanadium metal (6.5 eV) is in excellent agreement with the observed one (6.5 ± 0.25 eV). The splitting between the outer and inner valence bands in V<sub>2</sub>O<sub>3</sub> is 2 eV larger in the experiment than in the density functional theory calculation. The observed momentum distributions agree reasonably well with the calculated distributions with the exception of the intensity of the outer valence band relative to the inner valence band in V<sub>2</sub>O<sub>3</sub>: the outer valence band is less intense than calculated. The momentum density near the Fermi level in V metal resembles that of atomic V 3d orbitals. However, momentum profiles of the V 3d orbitals in V<sub>2</sub>O<sub>3</sub> are much more sharply peaked than the atomic 3d orbital in both the theory and experiment. Correlation effects are discussed and theoretical problems in describing EMS data from narrow band systems are identified.</p>