Exploring Topological States in 2D Magnetic Materials

探索二维磁性材料的拓扑状态

• 批准号: 2882195
• 金额: --
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2882195
• 关键词: Exploring; Topological; States; 2D; Magnetic

Magnetic materials form the basis of many modern-day technologies, yet the discovery of two-dimensional magnetic materials remains an outstanding research challenge that could transform science and technology. The 2016 Nobel Prize for Physics was awarded to Thouless, Haldane and Kosterlitz for their theoretical discoveries of topological phase transitions and topological phases of matter. In particular, by using topology, they showed that the physics of low-dimensional materials is entirely different to our three-dimensional world. This PhD project, supported by the Centre for Doctoral Training in Topological Design, aims to utilise these seminal developments in topology to design and characterise novel realisations in an emerging class of 2D magnetic materials - metal-organic nanosheets (MONs) - in which low-dimensional magnetic interactions are predicted to give rise to exotic and novel materials properties. Building on recent developments at the University of Birmingham, this project will involve the synthesis of novel magnetic MONs and will aim to understand how their structural and magnetic behaviours evolve on approaching the two-dimensional limit. This work will include the solution synthesis of magnetic metal-organic framework materials, their exfoliation to form 2D MONs and the characterisation of their bulk structure and properties. This will be complemented by on-surface fabrication of MONs and in-situ characterisation, as well as the development of methods needed to detect the structure and properties of various layered magnetic materials in the 2D limit. This project will integrate experimental activity at the University of Birmingham with work done at international synchrotron central facilities.

磁性材料构成了许多现代技术的基础，但是发现二维磁性材料仍然是一项出色的研究挑战，可以改变科学和技术。 2016年诺贝尔物理学奖获得了对物质的拓扑相过渡和拓扑阶段的理论发现，授予了Thouless，Haldane和Kosterlitz。特别是，通过拓扑结构，他们表明低维材料的物理学与我们的三维世界完全不同。该博士学位项目得到了拓扑设计博士培训中心的支持，旨在利用这些开创性发展的拓扑发展，以设计和表征新兴的2D磁性材料类别中的新颖实现 - 金属有机纳米片（MONS） - 其中低 - 预测尺寸磁相互作用会产生异国情调和新颖的材料特性。在伯明翰大学的最新发展的基础上，该项目将涉及新型磁性MON的综合，并旨在了解其结构和磁性行为如何在接近二维极限上发展。这项工作将包括磁性金属有机框架材料的溶液合成，其去角质形成2D MON以及其体积结构和性质的表征。这将通过对MON的地下制造和原位表征以及在2D极限中检测各种分层磁性材料的结构和特性所需的方法来补充。该项目将将伯明翰大学的实验活动与在国际同步中心设施中所做的工作相结合。