Creation of Skyrmions by Electric Field on Chiral‐Lattice Magnetic Insulators

It is theoretically proposed that magnetic skyrmions, nanometric spin vortices characterized by a quantized topological number, can be electrically created on a thin‐film specimen of chiral‐lattice magnetic insulator within a few nanoseconds by applying an electric field via an electrode tip taking advantage of coupling between noncollinear skyrmion spins and electric polarizations. This finding paves the way for utilizing multiferroic skyrmions as information carriers for low‐energy‐consuming magnetic storage devices without Joule‐heating energy losses.