Dilution effect on the U-5f states: U in an Ag matrix

Dilution effect on the U-5f states : U in an Ag matrix

QC 20150728
The electronic structure of U-diluted in an Ag matrix has been studied in situ by ultraviolet and X-ray photoelectron spectroscopy (UPS and XPS, respectively). UxAg100-x thin films (x = 0-100 at.%) were produced by sputter co-deposition in an Ar atmosphere. UPS spectra of the Ag-4d line indicate formation of a homogeneous mixture despite the fact that U and Ag do not form stable alloys. A major goal of this work was to find out whether the dilution of U atoms in an inert matrix with no bonding states induces the localisation of the U-5f states. Both U-4f core level spectra and the U-5f spectra indicate U-5f delocalisation, down to 5 at.% of uranium in UxAg100-x films.

TEKNIK OCH TEKNOLOGIER Materialteknik Metallurgi och metalliska material hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Metallurgy and Metallic Materials hsv//eng
NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
thin films
dc sputtering
electronic band structure
photoelectron
spectroscopies
electronic-structure
metal-clusters
noble-metal
photoelectron-spectroscopy
5f localization
d-bands
photoemission
silver
systems
transition

Gouder, T. (author)
Korzhavyi, Pavel A.,1966-KTH,Tillämpad materialfysik(Swepub:kth)u17nfa0i (author)
Wastin, F. (author)
Rebizant, J. (author)
KTHTillämpad materialfysik (creator_code:org_t)

In:Journal of Alloys and Compounds: Elsevier BV386:1-2, s. 70-740925-83881873-4669

By the author/editor: Eloirdi, R.; Gouder, T.; Korzhavyi, Pavel ...; Wastin, F.; Rebizant, J.

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Materials Engine ...; and Metallurgy and M ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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