二维范德瓦尔斯材料Fe$_5$GeTe$_2$的应变诱导层间磁耦合尖峰
Strain-induced interlayer magnetic coupling spike of two-dimensional van der Waals material Fe$_5$GeTe$_2$
AI总结：
本文发现3%面内应变可使二维范德瓦尔斯材料Fe5GeTe2的层间磁耦合从1.15跃升至12.79 meV/f.u，并显著增强磁各向异性能，为自旋电子学器件设计提供新思路。
摘要：
更强的层间磁耦合（ILMC）可为Fe$_5$GeTe$_2$（F5GT）这一已证实具有高居里温度的二维（2D）范德瓦尔斯（vdW）材料在自旋电子学器件中开辟新的机遇。本文中，我们观察到F5GT中异常的ILMC尖峰，通过施加3%的面内应变，其值从1.15跃升至12.79 meV/f.u。该尖峰主要归因于Fe5离子磁矩的显著增大。此外，施加的面内应变还能显著增强体系的磁各向异性能（MAE），从而触发多层F5GT中面内/面外构型之间的转变。
英文摘要：
A stronger interlayer magnetic coupling (ILMC) can open up new opportunities in spintronics devices for Fe$_5$GeTe$_2$ (F5GT), a demonstrated two-dimensional (2D) van der Waals (vdW) material with high Currie temperature. Here we observe an extraordinary ILMC spike in F5GT, jumping from 1.15 to 12.79 meV/f.u, by applying a 3% in-plane strain. This spike is mainly ascribed to a significant increase in the magnetic moment of the Fe5 ion. Moreover, the applied in-plane strain can also significantly enhance the magnetic anisotropy energy (MAE) of the system, triggering the transition between the in/off-plane configurations in multi-layer F5GT.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
