Magnetic anisotropy (MA) in magnetic multilayer structures plays a critical role in the design of future spintronic and magnetic devices. This property is more important for structures with a thickness of few angstroms, such as few-layer two-dimensional materials. Here, we determined the variation in the interface MA in mono- and bi-layer Co/phosphorene heterostructures via first-principles density functional theory calculations. We found that the MA of these structures was comparable to those of ferromagnet/heavy-metal interfaces, despite the small spin-orbit coupling strength of phosphorus atoms. The hybridization of the metal d and the phosphorene p orbitals is well manifested in the projected density of states of these systems. The strain dependence of the magnetic anisotropy energy (MAE) in bilayer Co/phosphorene heterostructures under uniaxial strains along zigzag and armchair directions of the phosphorene layer was investigated, indicating that the MAE of the system increases by more than 80% by applying the strain. More specifically, by utilizing the uniaxial tensile strain along the zigzag direction of this structure, we found that MA could vary from perpendicular to in-plane directions. Our findings indicate that interlayer hybrid bonds in two-dimensional layered materials can be a promising approach to tailoring the MA property.

磁性多层结构中的磁各向异性（MA）在未来的自旋电子和磁性器件的设计中起着至关重要的作用。此属性对于厚度为几埃的结构（例如，多层二维材料）更为重要。在这里，我们通过第一原理密度泛函理论计算确定了单层和双层Co /磷杂环结构中界面MA的变化。我们发现，尽管磷原子的自旋轨道耦合强度较小，但这些结构的MA与铁磁体/重金属界面的MA相当。金属d与磷p的杂化这些系统的预计状态密度很好地体现了轨道。研究了沿磷光体之字形和扶手椅方向单轴应变的双层Co /磷光体异质结构中磁各向异性能（MAE）的应变依赖性，表明通过施加应变，系统的MAE增加了80％以上。更具体地，通过利用沿着该结构的之字形方向的单轴拉伸应变，我们发现MA可以从垂直于平面内方向变化。我们的发现表明，二维分层材料中的层间杂化键可能是定制MA性能的一种有前途的方法。