X-ray photoemission spectroscopy of La(0.67)Ca(0.33)MnO(3) films

Abstract

We have performed x-ray photoemission spectroscopy (XPS) on thin films of (001) and (200) oriented La(0.67)Ca(0.33)MnO(3) grown on (100) and (110) SrTiO(3) substrates by off-axis sputtering. The films were examined by XPS without exposing them to air. We have compared the core levels and the valence spectra between the two different orientations, as well as after the effects of air exposure and annealing in UHV. We find that the surfaces are very stable against exposure to air. Comparing the measured intensity ratios to a model for the uniform termination of the film shows the terminating layer to be MnO(2) for both the (001) and (200) oriented La(0.67)Ca(0.33)MnO(3) films.

7 pages, 6 jpg figures, to appear in Applied Surface Science

Cited by in corpus (6)

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• Role of electron correlation and disorder on the electronic structure of layered nickelate (La${}_{0.5}$Sr${}_{0.5}$)${}_2$NiO${}_4$
• X-ray photoemission characterization of La_{0.67}(Ca_{x}Sr_{1-x})_{0.33}MnO_{3} films
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