Abstract
Composites of different weight ratios were prepared from CoFe2O4 and SrFe12O19 nanoparticles. The pure phase formation was confirmed by X-ray diffraction analysis. The average crystallite size of the individual CoFe2O4 and SrFe12O19 nanoparticles were found as 17 nm and 43 nm, respectively. Exchange interaction in prepared composites is corroborated with the $$M{-}H$$ curves. First order reversal curve measurements have been performed for the prepared composites to establish exchange interaction.
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