Road to zero-field antiferromagnetic skyrmions in a frustrated AFM/FM heterostructure
M. Mohylna,
V. Tkachenko,
M. Žukovič
Abstract:We demonstrate a mechanism of significant reduction, including complete elimination, of the external magnetic field required for the stabilization of a skyrmion lattice (SkX) phase in a frustrated triangular Heisenberg antiferromagnet (AFM) with the Dzyaloshinskii-Moriya interaction. It is achieved by coupling of such a AFM plane to a reference ferromagnetic (FM) layer, which generates an effective field cooperating with the external magnetic field. If the FM layer shows some axial single-ion anisotropy then t… Show more
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