Magnetic Metasurfaces for Sustainable Information and Communication Technologies (MetaMagIC)

用于可持续信息和通信技术的磁性超表面 (MetaMagIC)

• 批准号: EP/W022680/1
• 负责人: Simon Bending
• 金额: $ 2.07万
• 依托单位: University of Bath
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FW022680%2F1
• 关键词: Magnetic; Metasurfaces; Sustainable; Information; Communication

The MetaMagIC project addresses current technological concerns about the energy efficiency and sustainability of magnetic devices in Information and Communication Technology systems. To increase the efficiency of these there is a strong drive to achieve the precise control of magnetic fields on much smaller microscopic length scales in order to concentrate them uniformly in small and targeted regions. There is also a need to move away from expensive rare-earth based magnetic materials whose supply could become uncertain in the near future. MetaMagIC offers a low cost and highly effective way to address both these key challenges in a ground-breaking approach based on spatially structured magnetic materials, so-called magnetic metasurfaces. Combining cutting-edge theory and modelling with state-of-the-art techniques for fabricating and characterising magnetic thin-film devices, we will address several important technological areas. We will greatly increase the sensitivity of magnetic sensors, such as those found in cars and smart meters, by incorporating them in specially designed planar metasurfaces. We will also use this approach to improve the efficiency of small energy harvesting structures that can extract enough energy from their environments to power small electronic devices. We will combine the field expulsion and concentration properties of metasurfaces to achieve much more efficient wireless charging of, for example, mobile phones. Finally we will use the high field saturation of the response of magnetic materials to design entirely new types of devices and protect very sensitive equipment like heart pacemakers from damage by high magnetic fields.

MetaMagIC项目解决了当前对信息和通信技术系统中磁性设备的能效和可持续性的技术关注。为了提高效率，人们强烈希望在更小的微观长度尺度上实现磁场的精确控制，以便将它们均匀地集中在小而有针对性的区域。还有必要放弃昂贵的稀土磁性材料，这些材料的供应在不久的将来可能会变得不确定。MetaMagIC提供了一种低成本和高效的方法来解决这两个关键挑战，这是一种基于空间结构磁性材料的开创性方法，即所谓的磁性亚表面。将尖端理论和建模与制造和表征磁性薄膜器件的最先进技术相结合，我们将讨论几个重要的技术领域。我们将极大地提高磁性传感器的灵敏度，例如汽车和智能电表中的传感器，将它们纳入专门设计的平面准表面。我们还将使用这种方法来提高小型能源收集结构的效率，这些结构可以从环境中提取足够的能量来为小型电子设备提供动力。我们将结合变形表面的场驱逐和集中特性来实现更高效的无线充电，例如移动电话。最后，我们将利用磁性材料响应的高场饱和度来设计全新类型的设备，并保护非常敏感的设备，如心脏起搏器，使其免受强磁场的损害。

项目成果

High resolution magnetic microscopy based on semi-encapsulated graphene Hall sensors

• DOI: 10.1063/5.0097936
• 发表时间: 2022-07
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Penglei Li;D. Collomb;Zhen Jieh Lim;Sara Dale;P. Shepley;G. Burnell;S. Bending

A simplified model for minor and major loop magnetic hysteresis and its application for inference of temperature in induction heated particle beds

小环和主环磁滞的简化模型及其在感应加热颗粒床温度推断中的应用

• DOI: 10.1088/1361-6463/acf13f
• 发表时间: 2023
• 期刊: Applied Physics
• 作者: Noble J