Chiral magnetic structure of Y-type Ba0.6Sr1.4Zn2Fe12O22 hexaferrite in intermediate phase

Abstract

Chiral magnetic structure of Y-type Ba_0.6Sr_1.4Zn₂Fe₁₂O₂₂ hexaferrite in intermediate phase. / G. Khazaradze, A. Shengelaya. / Nano Studies. – 2020. – # 20. – pp. 131-136. – eng. Magnetic structure in intermediate-II and intermediate-III phases of Y-type hexaferrite single crystal Ba_0.6Sr_1.4Zn₂Fe₁₂O₂₂ was investigated using neutron diffraction with polarization analysis. It was found that both phases have chiral magnetic structures. This shows that in contrast to previous assumptions, intermediate-II phase has transverse conical spin structure similar to the intermediate-III phase. Therefore, magnetic field induced ferroelectric state may exist also in the intermediate-II phase of Y-type Ba_0.6Sr_1.4Zn₂Fe₁₂O₂₂ hexaferrite. Obtained results provide important insight into the recent observations of room temperature magnetoelectric coupling in Y-type Ba_0.6Sr_1.4Zn₂Fe₁₂O₂₂ hexaferrite. Fig. 3, Ref. 12.