Exploring the physics of nanoscale 3D ferromagnetic and superconducting materials

该项目的目标是创造和表征设计量子超材料，以展示和增强天然材料的磁性和超导特性，作为新兴量子技术的基础。卡迪夫大学开发的制造亚100纳米3D纳米结构的独特方法，将使学生能够复制天然材料的量子和经典行为，但在物理上重要的长度尺度上有额外的方法来控制几何参数。这个跨学科项目将看到学生在凝聚态物质和光子学组的三个主题的交叉点工作-磁性，超导性和光子学-设计和制造涂有铁磁或超导材料的新型3D纳米结构晶格，并使用最先进的显微镜和低温设施在整个卡迪夫大学的组进行表征。本项目研究的纳米结构量子材料将由我们小组建立的系统制造（见[1,2]），卡迪夫开发的新型仪器大大减小了特征尺寸。这将允许在人工磁晶格中对顶点几何结构进行复杂的控制，从而使研究诸如磁单极子和超导量子相滑移[3]等突发激发的基态有序和输运成为可能。

The goal of this project is the creation and characterisation of designer quantum metamaterials made to exhibit and enhance the magnetic and superconducting properties of naturally occurring materials as a foundation for emerging quantum technologies. The unique method for fabrication of sub-100nm nanostructures in 3D, developed at Cardiff, will enable the student to replicate quantum and classical behaviours of natural materials but with an additional means to control geometric parameters upon physically important length scales. This interdisciplinary project will see the student working at the intersection of three themes within the Condensed Matter and Photonics group - magnetism, superconductivity, and photonics - designing and fabricating novel 3D nanostructured lattices coated with ferromagnetic or superconducting materials, and characterisation using state-of-the-art microscopy and cryogenic facilities in the group across Cardiff University. The nanostructured quantum materials studied in this project will be fabricated by systems established within our group (see [1,2]), with feature sizes vastly reduced by novel instrumentation developed at Cardiff. This will allow intricate control of vertex geometry in artificial magnetic lattices, enabling the study of ground state ordering and transport of emergent excitations such as magnetic monopoles and superconducting quantum phase slips [3].