Photoelectron Spectroscopy Study of PuCoGa5 Thin Films
Thin layers of PuCoGax (x = 4 to 18) have been prepared by dc sputtering from a PuCoGa5 single crystal
target, and investigated in situ by X-ray and ultraviolet photoelectron spectroscopy. We could achieve
broad composition variability (monitored by the Pu-4f, Co-2p and Ga-2p core-level spectra). The results
are compared to the valence band spectra reported previously for PuCoGa5. Our experiments reveal that
some Ga excess (PuCoGa7) was likely for those original data. We demonstrate that there is a tendency to
the segregation of Ga at the surface, which has an important effect on the valence band spectra.
ELOIRDI Rachel;
HAVELA L.;
GOUDER Thomas;
SHICK A. B.;
REBIZANT J.;
HUBER Frank;
CACIUFFO Roberto;
2009-03-04
ELSEVIER SCIENCE BV
JRC50735
0022-3115,
www.elsevier.com/locate/jnucmat,
https://publications.jrc.ec.europa.eu/repository/handle/JRC50735,
10.1016/j.jnucmat.2008.08.059,
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