A SQUID Magnetometer for Quantum Materials, superconductors, molecular magnets and excited states

用于量子材料、超导体、分子磁体和激发态的 SQUID 磁力计

• 批准号: EP/R042594/1
• 负责人: Simon Clarke
• 金额: $ 52.7万
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FR042594%2F1
• 关键词: SQUID; Magnetometer; Quantum; Materials; superconductors

All solids and molecules interact to some extent with magnetic fields. In many simple solids such as sodium chloride where there are no unpaired or delocalised electrons the interaction is very weak, but in compounds such as magnetite, Fe3O4, one of the earliest "functional materials" the arrangement of atoms and electrons makes the interaction very strong, so it was used by the ancients as a compass. The development of new compositions of matter that might eventually be used as functional materials in technological devices requires measurement of their magnetic properties, along with, for example, their electronic conductivity and their crystal structures, in order to understand why they behave as they do. These measurements enable the development of new compositions with enhanced physical properties. The types of compound that will be measured using the proposed state-of-the-art instrument will range from powders and single crystals of new complex oxides and sulfides exhibiting diverse magnetic phenomena such as ferromagnetism, antiferromagnetism, spin-glass behaviour and superconductivity, to complex molecules which might have applications in areas ranging from as quantum computing to unravelling the effects of magnetic fields on avian navigation. The instrument will be key to capitalising on the unique properties of superconductors which have enabled a revolution in medical imaging using MRI scanners, and for which further developments using new superconductors and improved superconducting joints to achieve higher quality imaging will form a key part of the University's world-leading research effort in the coming years.The new state-of-the-art instrument is more efficient than the now-obsolete models and has much-enhanced functionality and will ensure the success of the University's ground-breaking research across a wide range of themes and will feed into the research of the major facilities at ISIS and the Diamond Light Source, and will attract a wider range of users.

所有的固体和分子都在一定程度上与磁场相互作用。在许多简单的固体中，如氯化钠，没有未成对或离域的电子，相互作用非常弱，但在化合物中，如磁铁矿，Fe 3 O 4，最早的“功能材料”之一，原子和电子的排列使相互作用非常强，所以它被古人用作指南针。开发新的物质组合物，最终可能被用作技术设备中的功能材料，需要测量它们的磁特性，沿着，例如，它们的电子导电性和晶体结构，以便理解它们为什么会表现出这样的行为。这些测量使得能够开发具有增强的物理性质的新组合物。将使用拟议的最先进的仪器测量的化合物类型将从粉末和新的复合氧化物和硫化物的单晶显示不同的磁性现象，如铁磁性，反铁磁性，自旋玻璃行为和超导性，复杂的分子可能有应用领域，从量子计算到解开磁场对鸟类导航的影响。该仪器将是利用超导体独特性能的关键，超导体使使用MRI扫描仪的医学成像发生革命，在未来数年，使用新超导体和改进的超导接头来实现更高质量的成像将成为大学世界领先的研究工作的关键部分。新的最先进的仪器比现在的更有效-该系统将淘汰过时的模型，功能大大增强，将确保和平大学在广泛主题方面的突破性研究取得成功，并将为伊斯兰国主要设施和钻石光源的研究提供投入，并将吸引更广泛的用户。

项目成果

Misfit phase (BiSe)1.10NbSe2 as the origin of superconductivity in niobium-doped bismuth selenide

• DOI: 10.1038/s43246-020-00085-z
• 发表时间: 2020-10
• 期刊: Communications Materials
• 影响因子: 7.8
• 作者: M. Kamminga;M. Batuk;J. Hadermann;S. Clarke

Muon spin rotation study of the layered oxyselenide Sr 2 CoO 2 Ag 2 Se 2

层状氧硒化物Sr 2 CoO 2 Ag 2 Se 2 的μ子自旋旋转研究

• DOI: 10.1103/physrevb.106.224410
• 发表时间: 2022
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: Gill G

$\require{mhchem}$Misfit phase $\ce{(BiSe)_{$1.10$}NbSe2}$ as the origin of superconductivity in nobium-doped bismuth selenide

$ equire{mhchem}$错配相$ce{(BiSe)_{$1.10$}NbSe2}$作为掺铌硒化铋超导性的起源

• DOI: 10.48550/arxiv.2010.03263
• 发表时间: 2020
• 作者: Kamminga M

Sodium and potassium intercalation into Ta2PdS6

钠和钾嵌入 Ta2PdS6

• DOI: 10.1016/j.jssc.2023.124012
• 发表时间: 2023
• 期刊: Journal of Solid State Chemistry
• 影响因子: 3.3
• 作者: Hyde P

Topochemical intercalation reactions of ZrSe3

• DOI: 10.1016/j.jssc.2022.123436
• 发表时间: 2022-07
• 期刊: Journal of Solid State Chemistry
• 影响因子: 3.3
• 作者: M. Elgaml;S. Cassidy;S. Clarke