X-ray photoelectron spectrum analysis of Yb3C60 compound

Authors
Cao, XW Shao, Y Wang, YF Lan, GX
Citation
Xw. Cao et al., X-ray photoelectron spectrum analysis of Yb3C60 compound, CHIN PHYS L, 18(5), 2001, pp. 656-658
Citations number
16
Categorie Soggetti
Physics
Journal title
CHINESE PHYSICS LETTERS
ISSN journal
0256307X → ACNP
Volume
18
Issue
5
Year of publication
2001
Pages
656 - 658
Database
ISI
SICI code
0256-307X(200105)18:5<656:XPSAOY>2.0.ZU;2-P
Abstract
The nominal composition of the Yb-3 C-60 compound is characterized by means of x-ray photoelectron spectroscopy. Evidence of the divalent state for th e Yb cation in the as-grown crystalline Yb3C60 is obtained. After exposure to air, the Yb3C60 compound transforms to an amorphous phase and Yb2O3 comp ound, while the valence state of the Mb cations changes from divalent to tr ivalent.