Delocalization of 4f Electrons in Gadolinium Oxide on the Nanometer Scale

TitreDelocalization of 4f Electrons in Gadolinium Oxide on the Nanometer Scale
Type de publicationJournal Article
Year of Publication2009
AuteursOu, M., V. Mauchamp, B. Mutelet, T. Epicier, J. C. Le Bosse, S. Roux, O. Tillement, and P. Perriat
JournalThe Journal of Physical Chemistry C
Volume113
Ticket10
Pagination4038 - 4041
Date Published03/2009
ISSN1932-7447
Résumé

Some metals such as silver are known to become strong reducers on the nanometer scale. Electron energy-loss spectroscopy (EELS) shows that modifications of the electronic structure of metal ions also arise in nanoparticles of gadolinium oxide. Indeed, the oxygen K and gadolinium N4,5 edges present modifications for particles size below 1.5 nm which are the signature of an hybridization of the initially atomiclike Gd 4f states with the valence band and especially the O p states. These modifications evidence that, like in metals, electron delocalization from metal sites also occurs in oxides on the nanometer scale.

DOI10.1021/jp808931k
Short TitleJ. Phys. Chem. C
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