Publication Type
Journal
Journal Name
Applied Surface Science
Publication Date
Page Numbers
4665 to 4670
Volume
254
Issue
15
Abstract
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 di�erence depending on the rare earth, both in the Mg series and in the Al series. Actually, 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 a�nity for oxygen versus nitrogen than La, as theoretically predicted by the ab initio calculations by Painter et al.