论文标题
在沮丧的AFM/FM异质结构中，通往零场抗磁磁性天空的道路
Road to zero-field antiferromagnetic skyrmions in a frustrated AFM/FM heterostructure
论文作者
论文摘要
我们证明了一种显着降低的机制，包括完全消除，以稳定在沮丧的三角形海森贝格防空力（AFM）中，与dzyaloshinskii-moriya相互作用相互作用所需的外部磁场。它是通过将这种AFM平面耦合到参考铁磁（FM）层来实现的，该层产生了与外部磁场合作的有效场。如果FM层显示一些轴向单离子各向异性，则由于自发的FM长距离排序，还可以在零外场中生成有效场。那么，足够大的层间耦合可以完全替代外部磁场，即使在零外场中，AFM层中的SKX相也可以稳定。
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 the effective field can also be generated in zero external field due to a spontaneous FM long-range ordering. Then a sufficiently large interlayer coupling can fully substitute the external magnetic field and the SkX phase in the AFM layer can be stabilized even in zero external field.
