论文标题
观察紧凑型铁磁性天空dyco $ _3 $电影
Observation of compact ferrimagnetic skyrmions in DyCo$_3$ film
论文作者
论文摘要
由于通过薄膜中的dzyaloshinskii-moriya稳定稳定的磁性天空迹象，在薄膜中稳定了二极化的相互作用，最近对抗铁磁性旋转的磁性天际兴趣兴起，以克服具有基本限制的固有的固有的固有的固有的属性。在这里，我们报告了使用Dyco $ _3 $膜的4F稀土和3D过渡金属元件组成的无形合金类别的紧凑型铁磁体的观察，该合金使用dyco $ _3 $膜组成，这些元素可通过结合X射线磁性散射，扫描X-ray Microsspopy和hall X-ray Microsspopy，并使用Dyco $ _3 $膜组成。这些天空具有反平行的对齐的Dy和CO磁矩，并且在磁迷宫样结构域模式的成核和歼灭期间形成了拓扑厅效应的贡献。我们的发现为在实用应用领域的铁磁/抗铁磁旋转型旋转方面提供了一条有前途的基础研究途径。
Owing to the experimental discovery of magnetic skyrmions stabilized by the Dzyaloshinskii-Moriya and/or dipolar interactions in thin films, there is a recent upsurge of interest in magnetic skyrmions with antiferromagnetic spins in order to overcome the fundamental limitations inherent with skyrmions in ferromagnetic materials. Here, we report on the observation of compact ferrimagnetic skyrmions for the class of amorphous alloys consisting of 4f rare-earth and 3d transition-metal elements with perpendicular magnetic anisotropy, using a DyCo$_3$ film, that are identified by combining x-ray magnetic scattering, scanning transmission x-ray microscopy, and Hall transport technique. These skyrmions, with antiparallel aligned Dy and Co magnetic moments and a characteristic core radius of about 40~nm, are formed during the nucleation and annihilation of the magnetic maze-like domain pattern exhibiting a topological Hall effect contribution. Our findings provide a promising route for fundamental research in the field of ferrimagnetic/antiferromagnetic spintronics towards practical applications.
