In-field 57Fe Mössbauer study of multiferroic Ba0.5Sr1.5Zn2Fe12O22 Y-type hexaferrite.

The structural, magnetic, and in-field 57 Fe Mössbauer studies of Ba 0.5 Sr 1.5 Zn 2 Fe 12 O 22 polycrystalline multiferroic, which belongs to Y-type hexaferrite class, are presented in this paper. Sr 2+ substitution at Ba 2+ site effects the redistribution of Zn 2+ and Fe 3+ ions at tetrahedral sites in the crystal. The magnetization data reveals the magnetic field induced transitions in the M – H curve. The in-field Mössbauer study reveals that the occupancy of Fe 3+ ions in the tetrahedral sites is more than that in the octahedral sites because of doping of Sr 2+ at Ba 2+ site, which plays an important role in field induced multiferroic property at low temperature. [ABSTRACT FROM AUTHOR]