Room-Temperature Superconductivity in Hydrogen Cage Compounds

氢笼化合物的室温超导性

• 批准号: EP/V048759/1
• 负责人: Sven Friedemann
• 金额: $ 25.78万
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV048759%2F1
• 关键词: Room; Temperature; Superconductivity; Hydrogen; Cage

Superconductivity is a state found in many metals at low temperatures where these conduct current without losses. This property is exploited to generate strong magnetic fields for medical imaging in all magnetic resonance tomographs and for first low-loss power transmission applications. Hence, superconductivity is very important for health care and has the potential to reduce energy consumption. In addition, recently developed quantum computers rely on superconducting q-bits. Much larger scale benefit from superconductivity is expected by developing materials that operate as superconductors at room temperature. Superconductivity close to room temperature has been discovered over the last 5 years in hydrogen compounds at very high pressures above 1 million atmospheres setting new records for the transition temperature into the superconducting state. This project will focus on finding materials with higher transition temperature and at lower pressure. The insight will help identifying the key parameters for high-temperature superconductivity. The results of the project will allow to refine theoretical modelling of new superconductors and will improve the methods used to produce high-temperature superconductors at high pressures. We will probe for superconductivity in ternary compounds. We will develop a simpler method for synthesis of these compounds and probe for superconductivity at high pressures with electrical transport measurements. Our new method will use thin films and is expected to make research on high-pressure superconductors accessible to more research groups and hence stimulate new activity.

超导性是在低温下许多金属中发现的一种状态，在这种状态下，超导会传导电流而不会造成损失。这一特性被用来产生强磁场，用于所有磁共振断层扫描仪中的医学成像和第一次低损耗电力传输应用。因此，超导对医疗保健非常重要，并具有降低能源消耗的潜力。此外，最近开发的量子计算机依赖于超导Q比特。通过开发在室温下作为超导体工作的材料，有望从超导中获得更大规模的好处。在过去的5年里，在100万大气压以上的非常高压的氢化合物中发现了接近室温的超导电性，创造了转变为超导状态的温度的新纪录。该项目将专注于寻找具有较高转变温度和较低压力的材料。这一洞察将有助于确定高温超导的关键参数。该项目的结果将允许改进新超导体的理论模型，并将改进用于在高压下生产高温超导体的方法。我们将探索三元化合物的超导电性。我们将开发一种更简单的方法来合成这些化合物，并用电子输运测量来探测高压下的超导电性。我们的新方法将使用薄膜，预计将使更多的研究小组能够接触到高压超导体的研究，从而刺激新的活动。