Strong Nonvolatile Magnon-Driven Magnetoelectric Coupling in Single-Crystal Co/[PbMg1/3Nb2/3O3]0.71[PbTiO3]0.29 Heterostructures

The ability to manipulate magnetism via electric fields, to achieve an emergent multiferroic response at the interface of a ferromagnetic material with a ferroelectric one, carries enormous potential for nanoscale devices. Here strong electric-field control of magnetism is reported for a heterostructure of cobalt on lead magnesium niobate--lead titanate. A strong, direct, magnon-driven magnetoelectric effect at the interface is resolved and quantified. These results are promising for technology based on engineered artificial multiferroics.