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RESEARCH PRODUCT
QUADRUPOLAR CHARACTER OF THE Ti K-EDGE PREPEAKS IN TiO2 BY RESONANT AUGER
Sylvie BourgeoisJ. DangerJ. DangerD. ChandesrisW. DrubeHélène MagnanHélène MagnanT. EickhoffJacques JupilleP. Le Fèvresubject
PhotonChemistrySurfaces and InterfacesElectronCondensed Matter PhysicsSpectral lineSurfaces Coatings and FilmsAugerDipoleK-edgeAbsorption edgeMaterials ChemistryAtomic physicsLine (formation)description
Resonant spectroscopies offer a new opportunity to get more insight into excited electronic states by studying line shapes and intensities of decay processes. For photon excitations in the pre-K-edge region, the Ti KL 2,3 L 2,3 Auger spectra in TiO 2 show additional peaks when an electron is promoted in localized d-like states via a quadrupolar transition. This resonant process is used to unravel the respective contributions of quadrupolar and dipolar transitions to the absorption edge prepeaks.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-04-01 | Surface Review and Letters |