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对二维Fe₃GeTe₂的磁性和磁光学增强的接口工程策略

Lin Mao¹, Xia Wang², Manman Huang¹

¹Wuhan National High Magnetic Field Center and Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, P. R. China.

|March 16, 2026

概括

接口工程增强了像Fe3GeTe2 (FGT) 这样的二维 (2D) 铁磁体,提高了自旋电子设备的临界温度和磁信号强度. 这项研究为先进的二维磁性异构结构应用提供了策略.

科学领域:

凝聚物质物理学凝聚物质物理学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

二维 (2D) 铁磁铁对于自旋电子设备至关重要,临界温度,交换偏差和磁信号强度是关键性能参数.
接口工程是调节二维铁磁铁的磁性和探索新的物理现象的重要技术.

研究的目的:

研究用于增强二维铁磁铁磁铁的磁性特性的接口工程策略,特别是Fe3GeTe2 (FGT).
探索异构结构和纳米结构对磁性参数和磁光学效应的影响.

主要方法:

范德瓦尔斯异构结构 (FGT/WTe2,FGT/MnPSe3) 的制造和表征.
使用Au-layer微空洞进行磁光放大.
采用拓反射磁性圆形二极化来检测 skyrmions.

主要成果:

在工程FGT系统中观察到,基里温度增加20K,交换偏差为0.016T.
在FGT/WTe2稳定电流调节的 skyrmions. 界面诱导的Dzyaloshinskii-Moriya相互作用.
纳米结构将克尔旋转放大了11倍,达到16.5mrad.

结论:

接口工程有效调整2D铁磁性,增强旋转和磁光学应用的关键参数.
异构结构和等离子纳米结构为设计高性能,低功耗的自旋电子和磁光学设备提供了实际的途径.

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