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|Title:||Dilution Effect on the U-5f States: U in an Ag Matrix|
|Authors:||ELOIRDI RACHEL; GOUDER THOMAS; KORZHAVYI P.a.; WASTIN FRANCK; REBIZANT JEAN|
|Citation:||JOURNAL OF ALLOYS AND COMPOUNDS vol. 386 p. 70-74|
|JRC Publication N°:||JRC30450|
|Type:||Articles in Journals|
|Abstract:||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.|
|JRC Institute:||Institute for Transuranium Elements|
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