Experimental findings show increased magnetocrystalline anisotropy in ferromagnetic Fe3GeTe2 with interface coupling to VI3, suggesting potential for future applications.
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.
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Kang et al. (2024) studied this question.
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