Abstract
This work is a study of 57Fe-doped CuO samples intended to obtain a compound of nominal composition (Cu 1− x Fe x )O ( x = 0.005; 0.010) through the nitrate route and solid state reactions. Afterwards, the samples were mechanically ground for different times. The specimens were characterized by Mössbauer Spectroscopy and X-ray diffraction. For samples that were not mechanically ground, the iron phases were tetragonal and cubic CuFe 2O 4 spinel, and CuFeO 2, delafossite, independent of the preparation method with no evidence of Fe inclusion into the CuO lattice. For mechanically ground samples, a metastable paramagnetic phase has been found.
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