Title:
Investigation of the aging of epitaxial LaNiO3–x films by X-ray photoelectron spectroscopy
Group publication title:
Creator:
Mickevicius, Sigitas ; Grebinskij, Sergej ; Bondarenka, Vladimiras ; Tvardauskas, Henrikas ; Vengalis, Bonifacas ; Sliuziene, Kristina ; Orlowski, Bronislaw A. ; Drube, Wolfgang
Contributor:
Gaj, Miron. Redakcja ; Wilk, Ireneusz. Redakcja
Subject and Keywords:
optyka ; reactive D.C. magnetron sputtering ; LaNiO3 ; photoelectron spectroscopy ; synchrotron radiation
Description:
Optica Applicata, Vol. 36, 2006, nr 2-3, s. 235-243
Abstrakt:
The X-ray photoelectron spectroscopy (XPS) was performed to study surface and volume composition, valence states and the concentration of hydroxyl groups in epitaxial LaNiO3–x thin films after aging in air. The existence of at least few different forms of oxygen as lattice oxide, hydroxyl groups and adsorbed water in the samples is shown by XPS characterization. The lanthanum and nickel exist in oxide and hydroxide chemical states. The concentration of hydroxyl groups increases at the surface but it is distributed through the volume as well. It was found that the surface Ni/La concentration ratio is close to the stoichiometric bulk value.
Publisher:
Oficyna Wydawnicza Politechniki Wrocławskiej
Place of publication:
Date:
Resource Type:
Source:
<sygn. PWr A3481II> ; click here to follow the link ; click here to follow the link
Language:
Relation:
Optica Applicata ; Optica Applicata, Vol. 36, 2006 ; Optica Applicata, Vol. 36, 2006, nr 2-3 ; Politechnika Wrocławska. Wydział Podstawowych Problemów Techniki
Rights:
Wszystkie prawa zastrzeżone (Copyright)
Access Rights:
Dla wszystkich w zakresie dozwolonego użytku