带有石墨烯的电磁可读存储器/1T-CrTe2异构结构:异常的霍尔晶体管
Surabhi Menon1, Umesh V Waghmare1
1Jawaharlal Nehru Centre for Advanced Scientific Research, Theoretical Sciences Unit, Bangalore 560064, India. waghmare@jncasr.ac.in.
Nanoscale
|November 29, 2024
概括
我们展示了在石墨烯/CrTe2异构结构中对旋极化异常霍尔导电的电场控制. 这使得用于量子设备的拟议异常大厅晶体管 (AHT) 能够使用旋转和电荷用于数据存储.
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:
- 二维 (2D) 范德瓦尔斯 (vdW) 异构结构提供可调节的电子特性.
- 与二维材料集成的铁磁材料能够实现新的自旋电子功能.
- 控制自旋两极化对于下一代电子设备至关重要.
研究的目的:
- 在石墨烯/铁磁CrTe2 vdW异构结构中研究旋极化异常霍尔导电性 (AHC).
- 探索AHC和磁电反应的电场控制.
- 根据观察到的现象,提出一种新的设备概念.
主要方法:
- 第一个原则理论分析.
- 计算自旋偏极异常的霍尔导电性.
- 研究电荷转移和电极化.
- 磁电合和贝里曲率的分析.
主要成果:
- 在石墨烯/CrTe2异构中通过垂直电场 (E) 证明可调节的AHC.
- 确定了电荷转移和自旋分裂的迪拉克点作为AHC和线性磁电效应的起源.
- 展示了电场对磁化,载体密度和旋转极化果曲率的控制.
- 量化的电极化 P = 1.69 μC cm−2 和合器 H' = -VP·E.
结论:
- 电场有效地控制了石墨烯/CrTe2异构结构中的自旋极化AHC.
- 这项研究揭示了AHC和磁电反应的潜在机制.
- 提出了一种新的异常厅晶体管 (AHT),利用量子几何学和磁电传输来存储量子设备中的二进制信息.
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