统一的电气和滑动控制的旋谷层偏振异常大厅效应在Janus YFI Bilayers中的统一的电气和滑动控制
Junjie He1, Huiyun Fu1, Yuli Xiong1
1School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China.
The journal of physical chemistry letters
|December 10, 2025
概括
研究人员在二维铁路二层中展示了对旋转,谷和层属性的电控制. 这一发现为先进的valleytronic设备铺平了道路,通过调整旋转谷层偏振异常霍尔效应 (AHE).
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
- 这两家公司是Spintronics和Valleytronics.
背景情况:
- 二维 (2D) 铁路二层层具有合的旋转,谷和层自由度,这对于valleytronic应用至关重要.
- 目前还没有统一的理解如何在二维铁路二层中对外部刺激控制这些特性.
研究的目的:
- 在Janus YFI双层中演示一个通用机制,用于电气调节山谷分裂和旋转山谷层偏振异常霍尔效应 (AHE).
- 调查2H-YFI双层中层间滑动和电场对带结构和谷间偏振的调制.
主要方法:
- 系统检查2H-YFI双层上的层间滑动和外部电场.
- 构建一个双频 k·p 模型以阐明底层物理.
- 分析由间层反铁磁合和层间非对称电荷再分配引起的自旋谷层偏振异常霍尔效应 (AHE).
主要成果:
- 在Janus YFI双层中展示了谷区分裂和AHE电气调节的通用机制.
- 展示了层间滑动和电场在控制山谷偏振和霍尔反应方面的功能等价性.
- 确定了层间反铁磁合和层间不对称的电荷再分配作为自旋谷层极化AHE的来源.
结论:
- 建立了双层铁路系统的统一电气控制策略.
- 通过证明电气可调性,促进了非挥发性山谷电子设备的设计.
- 突出了Janus YFI双层在先进的valleytronic应用中的潜力.
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