极性可逆零场二极管效应在范德瓦尔斯铁磁约瑟夫森交叉点用于逻辑操作
Guojing Hu1,2, Yechao Han1,2, Hui Guo1,2
1Beijing National Center for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|December 4, 2025
概括
研究人员在2D范德瓦尔斯异构结构中开发了一种极性可逆的约瑟夫森二极管效应 (JDE). 这一突破使高效的零场超导二极管用于先进的电子产品.
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
- 量子计算是一种量子计算.
背景情况:
- 超导电子提供高能效和量子准备性质.
- 非互换电路元件,如超导二极管,对于量子处理器和传感器至关重要.
- 开发用于零磁场操作的实用,极性调节的超导二极管是一个重大挑战.
研究的目的:
- 为了证明一个极性可逆的零场约瑟夫森二极管效应 (JDE).
- 探索二极管特征在二维范德瓦尔斯 (vdW) 异构结构中的可调性.
- 评估使用可重新配置的JDE实现逻辑操作的潜力.
主要方法:
- 使用NbSe2 (超导体) 和Fe3GeTe2 (铁磁体) 制造垂直堆叠的2D vdW约瑟夫森连接.
- 调查约瑟夫森二极管效应及其通过Fe3GeTe2层的磁性状态和厚度的可调性.
- 专用OR (XOR) 逻辑门的实验实施.
主要成果:
- 证明一个极性可逆的零场JDE具有持续的性能.
- 二极管不对称性和整正极性通过Fe3GeTe2层的磁性状态和厚度成功调整.
- 实现了高达34.1%的正效率,并具有极性可逆性.
- 使用可重新配置的JDE.成功运行XOR逻辑门.
结论:
- 建立了一条新途径,用于创建高效的,极性可逆的,零场超导二极管.
- 突出了2D vdW异构结构对于非散射超导电子的潜力.
- 可重新配置的JDE在下一代计算架构中提供了有前途的应用.
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