Substitution effects in M-type hexaferrite powders investigated by Mössbauer spectrometry
作者： L. Lechevallier , J.M. Le Breton
DOI: 10.1016/J.JMMM.2004.11.411
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摘要: Significant improvements of the magnetic properties M-type hexaferrites (SrFe 12 O 19 ) can be achieved through partial substitutions with a rare-earth element and transition metal. From this point view, 57 Fe Mossbauer spectrometry is very powerful tool to determine location substituted elements. We discuss here effects on spectrum substitution rare earth ion (Sm 3+ , Nd or La in Sr 2+ site, metal (Co Zn sites.
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