Composition and local bonding in RE–Si–M–O–N ( M = Mg , Al ; RE = La , Lu) glasses

Two series of oxynitride glasses, RE–Si–Mg–O–N ( M = Mg , Al ; RE = La , Lu), have been studied by X-Ray photoelectron spectroscopy (XPS). The oxygen 1s photoelectron lineshape reveals a striking difference depending on the rare earth, both in the Mg series and in the Al series. Specifically, the ox...

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Bibliographic Details
Published in:Applied surface science 2008-05, Vol.254 (15), p.4665-4670
Main Authors: Fouquet-Parry, V., Paumier, F., Guittet, M.J., Gautier-Soyer, M., Satet, R., Hoffmann, M.J., Becher, P.F., Painter, G.S.
Format: Article
Language:English
Subjects:
Amorphous semiconductors, metallic glasses, glasses
Binding energy
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Disordered solids
Electron and ion emission by liquids and solids
impact phenomena
Electron states
Electronic structure of disordered solids
Exact sciences and technology
Glasses
Oxynitride glass
Photoemission and photoelectron spectra
Physics
Rare earths
Structure of solids and liquids
crystallography
XPS
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Summary:Two series of oxynitride glasses, RE–Si–Mg–O–N ( M = Mg , Al ; RE = La , Lu), have been studied by X-Ray photoelectron spectroscopy (XPS). The oxygen 1s photoelectron lineshape reveals a striking difference depending on the rare earth, both in the Mg series and in the Al series. Specifically, the oxygen 1s photoelectron lines of the La doped glasses are broader than the ones of the Lu doped glasses. This result is an experimental evidence that Lu has a larger affinity for oxygen versus nitrogen than La, as theoretically predicted by the first-principles calculations by Painter et al.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2008.01.071