Giant magnetoelectric effects achieved by tuning spin cone symmetry in Y-type hexaferrites.

ABSTRACT: Multiferroics materials, which exhibit coupled magnetic and ferroelectric properties, have attracted tremendous research interest because of their potential in constructing next-generation multifunctional devices. The application of single-phase multiferroics is currently limited by their usually small magnetoelectric effects. Here, we report the realization of giant magnetoelectric effects in a Y-type hexaferrite Ba_0.4Sr_1.6Mg₂Fe₁₂O₂₂ single crystal, which exhibits record-breaking direct and converse magnetoelectric coefficients and a large electric-field-reversed magnetization. We have uncovered the origin of the giant magnetoelectric effects by a systematic study in the Ba_2-x Sr _x Mg₂Fe₁₂O<

SUBMITTER: Zhai K 

PROVIDER: S-EPMC5595903 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature