在二维磁性材料和异质连接上使用的Spintronic设备
Zhiyan Jia1, Mengfan Zhao1, Qian Chen2
1Institute of Quantum Materials and Devices, School of Materials Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China.
ACS nano
|March 7, 2025
概括
二维 (2D) 磁性材料使先进的自旋电子设备成为可能. 这些材料促进了高效的旋转轨道扭矩 (SOT) 切换和巨型道磁阻 (TMR) 效应,用于下一代磁性存储和计算.
科学领域:
- 螺旋电子学和材料科学,专注于二维 (2D) 磁性材料.
背景情况:
- 由于其层次结构和范德瓦尔斯堆叠,对二维磁性材料的兴趣越来越大.
- 旋转轨道扭矩 (SOT) 装置和道磁阻 (TMR) 效应作为关键研究领域的出现.
- 2D材料的潜力用于高性能自旋电子设备,如磁道连接 (MTJ) 和自旋.
研究的目的:
- 提供对2D SOT异质连接的全面审查,涵盖其构造,测量和机制.
- 审查2D材料中TMR效应的物理机制和设备设计.
- 为突出将二维材料集成到SOT,MTJ和旋装置中的进步.
主要方法:
- 对二维SOT异构连接的现有文献的综述.
- 分析SOT驱动磁化切换和TMR效应的机制.
- 不同的2D异构连接结构和增强TMR值的因素的概述.
主要成果:
- 2D SOT异质连接可实现高效的SOT驱动磁化切换,对称性破坏导致无场切换和低电流密度 (低至10^6 A/cm^2).
- 由于2D材料的TMR效应,特别是层叠的反铁磁体,可以实现巨大的TMR比率 (接近19,000%) 由于旋转波效应.
- 2D材料集成的进步提供了高密度存储,低功耗计算和快速数据传输.
结论:
- 二维磁性材料对于开发高性能自旋电子设备至关重要.
- 2D异质连接中的SOT和TMR效应显示出对磁性存储和逻辑集成电路的显著前景.
- 这些进步准备通过改进的磁随机访问存储器 (MRAM) 和计算能力来彻底改变信息技术.
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