Abstract

Zn0.8Co0.2O epitaxial films have been grown by reactive magnetron sputtering and investigated with regard to the local structural properties, valence, and magnetism using x-ray absorption spectroscopy and both linear as well as magnetic circular dichroism. Samples were found to be phase pure and paramagnetic even at the coalescence of the Co doping and a small magnetic polarization of the Zn can be inferred. The changes of structure, valence, and magnetism upon increasing the oxygen content in the sputter gas are researched as well.

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