Twist-stacked 2D bilayer Fe3GeTe2 with tunable magnetism,Journal of Materials Chemistry C

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Twist-stacked 2D bilayer Fe3GeTe2 with tunable magnetism
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2022-08-09 , DOI: 10.1039/d2tc01889f
Dong Chen ₁ , Wei Sun ₂ , Wenxuan Wang ₂ , Xiaoning Li ₃ , Hang Li ₂ , Zhenxiang Cheng ₃

Affiliation

Controlling magnetism in two-dimensional (2D) magnetic compounds is of great significance for potential applications in novel spintronic devices. Based on the van der Waals monolayer, twist-stacking of bilayers can lead to different interlayer magnetic ordering, which provides an additional way to tune the magnetism of a 2D system. In this work, an antiferromagnetic–ferromagnetic phase transition is realized by applying a “twist-stacking” scheme, in which the two Fe₃GeTe₂ layers are rotated through a designed angle to form different stacking orders of Fe, Ge and Te. In addition, we demonstrate the manipulations of the electronic structure and charge transfer in a twist-stacked Fe₃GeTe₂ bilayer. By realizing different stacking orders of atoms, our twist-stacking scheme provides a platform for designing and manipulating 2D van der Waals magnetic systems.

中文翻译：

具有可调磁性的扭曲堆叠二维双层 Fe3GeTe2

控制二维（2D）磁性化合物的磁性对于新型自旋电子器件的潜在应用具有重要意义。基于范德华单层，双层的扭曲堆叠可以导致不同的层间磁性排序，这为调节二维系统的磁性提供了另一种方法。在这项工作中，通过应用“扭曲堆叠”方案实现了反铁磁-铁磁相变，其中两个 Fe ₃ GeTe ₂层旋转设计的角度以形成 Fe、Ge 和 Te 的不同堆叠顺序。此外，我们展示了扭曲堆叠的 Fe ₃ GeTe _{2中电子结构和电荷转移的操作}双层。通过实现原子的不同堆叠顺序，我们的扭曲堆叠方案为设计和操纵二维范德华磁系统提供了一个平台。

更新日期：2022-08-09

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