Mossbauer effect and discovery of new hexagonal ferrites prepared at 980 degrees C

In the present article, undoped and Go-doped M-type Sr-hexaferrites have be en prepared at low temperatures down to 980 degrees C for the first time by the usual ceramic procedure and sintering technique. On these materials, a Co-K-alpha X-ray diffraction analysis and the room temperature Fe-57 Mossb auer spectroscopy (MES) were carefully performed. The results obtained are described and interpreted. The mechanism of Co- substitution partially in p lace of iron and the site of its occupancy were proposed and established.