Title:

Investigation of the aging of epitaxial LaNiO3–x films by X-ray photoelectron spectroscopy

Group publication title:

Optica Applicata

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:

Wrocław

Date:

2006

Resource Type:

artykuł

Source:

<sygn. PWr A3481II> ; click here to follow the link ; click here to follow the link

Language:

eng

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

Location:

Politechnika Wrocławska