AI 中文总结
研究由铁磁体和反铁磁体组成的范德华异质结构,利用磁近邻效应诱导非相对论性谷极化,通过调节相关参数实现四个独立谷极化态,展现强磁谷耦合,在谷电子学信息存储领域有潜在应用价值。
AI 中文摘要
范德华异质结构中的磁近邻效应显著影响相邻材料的性质。本文提出由单层铁磁体(FM)和反铁磁体(AM)组成的范德华异质结构,其中FM的磁近邻效应在AM中诱导出明显的非相对论性谷极化,且该现象具有普遍性。通过调节FM的磁化强度和AM的奈尔矢量方向,在FM/AM异质结构中可实现四个独立的谷极化态,展现出强磁谷耦合。这些发现表明FM/AM异质结构在基于谷电子学的信息存储领域具有潜在应用价值。
英文摘要
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 Néel 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.