Quantum spin Hall effect spintronics

量子自旋霍尔效应自旋电子学

• 批准号: 2597135
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2597135
• 关键词: Quantum; spin; Hall; effect; spintronics

In this project we shall investigate the potential for spintronics of the quantum spin Hall (QSH) regime in hybrid nanostructures made by attaching ferromagnetic metal contacts to the edge states of two-dimensional topological insulators. These 2D materials will be formed from semiconducting InAs/GaSb coupled quantum wells. Being able to harness the spin-momentum-locked helical edge states in the QSH regime will have the potential for realising dramatic reductions in the power consumption of classical ICT hardware, and in the longer term offer the prospect of being useful for topological quantum computing. In this project the student will be trained in and carry out nanofabrication of hybrid semiconductor/ferromagnet devices, cryogenic measurements, and magnetic film deposition and characterisation.

在这个项目中，我们将调查潜在的自旋电子学的量子自旋霍尔（QSH）制度的混合纳米结构，通过连接铁磁金属接触的边缘状态的二维拓扑绝缘体。这些2D材料将由半导体InAs/GaSb耦合量子威尔斯形成。能够利用自旋动量锁定的螺旋边缘状态的QSH制度将有可能实现显着降低功耗的经典ICT硬件，并在长期提供的前景是有用的拓扑量子计算。在这个项目中，学生将接受培训，并进行混合半导体/铁磁器件，低温测量，磁膜沉积和表征的纳米加工。