Influence of the annealing condictions on the chemical structure of LaBaGdCo ceramics

Ceramic samples based on Barium, Lanthanum, Gadolinium and Cobaltium were produced by solid state reaction.  After sintring in a furnance, samples were annealed at 300 Celsius degree in wet and dry atmosphere. Annealing takes 72h or 2h. Results of annealing were observed by X-Ray photoemission spectroscopy (XPS), OmicronNanotechnology.  XPS analysis were performed at room temperature under a pressure below 1.1 × 10−9 mBar. The photoelectrons were excited by an Mg-Kα X-Ray anode operated at 15 keV and 300 W. Omicron Argus hemispherical electron analyser with a round aperture of 4 mm was used for the analysis of emitted photoelectrons. Measurements were carried out in a constant analyser energy (CAE) mode with pass energy equal 50 eV. To remove contaminations and oxides, the surface was etched before the measurement. Argon ion gun with energy up to 5 keV was used for 5 min. etching. In this dataset Ba3d, Ba4d and Ba4p high resolution spectra for samples are presented.