论文标题
单层铁磁体中的自旋轨道耦合：直接观察自旋轨道和手性自旋纹理
Spin-orbit coupling in single layer ferrimagnets: direct observation of spin-orbit torques and chiral spin textures
论文作者
论文摘要
我们证明，即使没有重金属界面，自旋轨道耦合和反转不对称的影响也存在于单个GDFECO铁磁层中。我们使用电动传输测量来量化自旋轨道扭矩。我们使用Brillouin光散射测量技术测量了Dzyaloshinskii-Moriya的相互作用，并使用X射线PEEM显微镜观察所产生的手性磁纹理。我们将这些作用归因于沿厚度的组成变化，我们通过扫描透射电子显微镜观察到。我们表明，可以通过改变GDFECO厚度或将它们与界面效应结合来优化这些效果。
We demonstrate that effects of spin-orbit coupling and inversion asymmetry exist in a single GdFeCo ferrimagnetic layer, even without a heavy metal interface. We use electric transport measurements to quantify the spin-orbit torques. We measure the Dzyaloshinskii-Moriya interaction using Brillouin light scattering measurement technique, and we observe the resulting chiral magnetic textures using x-ray PEEM microscopy. We attribute these effects to a composition variation along the thickness, that we observed by scanning transmission electron microscopy. We show that these effects can be optimized by varying the GdFeCo thickness or by combining them with interfacial effects.
