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arXiv · 2309.07702

Electric-field Switching of Interlayer Magnetic Order in a van der Waals Heterobilayer via Spin-potential Coupling

Chengxi Huang·Jinzhe Han·Jing Wang·Jintao Jiang·Ziyang Qu·Fang Wu·Ang Li·Yi Wan·Kaiyou Wang·Erjun Kan
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Abstract

Electric-field switching of magnetic order is of significant physical interest and holds great potential for spintronic applications. However, it has rarely been reported in two-dimensional (2D) van der Waals (vdW) magnets due to the inherently weak interaction between spin order and electric fields. Here we propose a general spin-potential mechanism that significantly enhances the magnetoelectric coupling. As a result, the relative stability of different interlayer magnetic orders in an asymmetric van der Waals heterobilayer can be reversed by external electric fields via spin-potential coupling. Based on this mechanism, we designed a series of 2D vdW all-magnetic heterobilayers, such as CrI3/MnSe2, in which a transition from interlayer ferromagnetic (iFM) to antiferromagnetic (iAFM) order is realized by a feasible electric field around 0.1 V/{\AA}. Our findings not only reveal a novel magnetoelectric coupling mechanism, but also present a practical strategy for achieving pure electric-field-driven magnetic order switching

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Chengxi Huang, Jinzhe Han, Jing Wang, Jintao Jiang, Ziyang Qu, Fang Wu, Ang Li, Yi Wan, Kaiyou Wang, Erjun Kan. 2023-09-14. Electric-field Switching of Interlayer Magnetic Order in a van der Waals Heterobilayer via Spin-potential Coupling. https://arxiv.org/abs/2309.07702

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