Enhancing magnetocrystalline anisotropy through interface coupling in a 2D ferromagnetic Fe3GeTe2/VI3 heterostructure

作者：Long Tang, Yan Zhou, Chaoyang Kang, Bo Wen, Jianjun Tian, Weifeng Zhang · 发表于：Applied Physics Letters · 年份：2024 · DOI：10.1063/5.0184885 · 被引用次数：8 · 研究领域：2D Materials and Applications、Magnetic properties of thin films、Topological Materials and Phenomena

Interface coupling is considered as an effective approach to manipulate the physical properties of heterostructures. Here, we fabricated the heterostructure composed of two-dimensional (2D) ferromagnetic Fe3GeTe2 (FGT) and VI3. The experimental findings demonstrated that VI3 plays a pivotal role in modulating the spin texture of FGT through close-range coupling, leading to a substantial increment in the coercive field (HC) of FGT by ∼150%. To rational our findings, density functional theory calculations were employed to investigate the underlying mechanism. We propose that the spin pining effect at the interface contributes significantly to the observed enhancement of magnetic anisotropy. This research expands our understanding of interface effects and offers a promising method for the magnetism manipulation in 2D ferromagnetic systems.