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arXiv · 2607.22360

Magnetic proximity-induced non-relativistic valley polarization

Weifeng Xie·Yongqi Chen·Yiboyang Sun·Xiong Xu·Yunliang Yue·Hui Wang
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Abstract

The magnetic proximity effect in van der Waals heterostructures exerts a significant impact on the properties of adjacent materials. Here, we propose van der Waals heterostructures composed of monolayers ferromagnets (FM) and altermagnets (AM), in which the magnetic proximity effect from the FM induces pronounced non-relativistic valley polarization in the AM, and this phenomenon is demonstrated to be universal. Furthermore, by tuning the magnetization of the FM and the N\'eel vector direction of the AM, four independent valley-polarized states can be realized in the FM/AM heterostructures, exhibiting strong magnetic-valley coupling. These findings suggest that FM/AM heterostructures hold potential application value in the field of valleytronics-based information storage.

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Weifeng Xie, Yongqi Chen, Yiboyang Sun, Xiong Xu, Yunliang Yue, Hui Wang. 2026-07-24. Magnetic proximity-induced non-relativistic valley polarization. https://arxiv.org/abs/2607.22360

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