Photoemission study of praseodymia in its highest oxidation state: The necessity of in situ plasma treatment

Autor(en): Schaefer, A.
Gevers, S.
Zielasek, V.
Schroeder, T.
Falta, J.
Wollschlaeger, J.
Baeumer, M.
Stichwörter: CEO2; Chemistry; Chemistry, Physical; ELECTRONIC-STRUCTURE; Physics; Physics, Atomic, Molecular & Chemical; PRO2; RARE-EARTH-OXIDES; SI(111); SPECTROSCOPY; SYSTEM
Erscheinungsdatum: 2011
Herausgeber: AMER INST PHYSICS
Enthalten in: JOURNAL OF CHEMICAL PHYSICS
Band: 134
Ausgabe: 5
Zusammenfassung: 
A cold radio frequency oxygen plasma treatment is demonstrated as a successful route to prepare clean, well-ordered, and stoichiometric PrO2 layers on silicon. High structural quality of these layers is shown by x-ray diffraction. So far unobserved spectral characteristics in Pr 3d x-ray photoelectron (XP) spectra of PrO2 are presented as a fingerprint for praseodymia in its highest oxidized state. They provide insight in the electronic ground state and the special role of praseodymia among the rare earth oxides. They also reveal that former XP studies suffered from a significant reduction at the surface. (C) 2011 American Institute of Physics. [doi:10.1063/1.3516953]
ISSN: 00219606
DOI: 10.1063/1.3516953

Show full item record

Page view(s)

4
Last Week
0
Last month
0
checked on Jun 25, 2024

Google ScholarTM

Check

Altmetric