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

• The structural, magnetic, and in-field 57Fe Mössbauer studies of Ba0.5Sr1.5Zn2Fe12O22 are reported.
• Doping of Sr at Ba site yielded the field induced transitions in the material.
• The Fe+3 ions at tetrahedral sites are more than the octahedral sites by Sr doping.

The structural, magnetic, and in-field 57Fe Mössbauer studies of Ba0.5Sr1.5Zn2Fe12O22 polycrystalline multiferroic, which belongs to Y-type hexaferrite class, are presented in this paper. Sr2+ substitution at Ba2+ site effects the redistribution of Zn2+ and Fe3+ 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 Fe3+ ions in the tetrahedral sites is more than that in the octahedral sites because of doping of Sr2+ at Ba2+ site, which plays an important role in field induced multiferroic property at low temperature.