Room-Temperature Superconductivity in Hydrogen Cage Compounds

超导性是许多金属在低温下的一种状态，这些金属在低温下导电而不损失电流。这一特性被用来产生强磁场，用于所有磁共振断层成像的医学成像和首次低损耗电力传输应用。因此，超导性对医疗保健非常重要，并且具有降低能耗的潜力。此外，最近开发的量子计算机依赖于超导q位。通过开发在室温下作为超导体工作的材料，有望从超导性中获得更大规模的好处。在过去的5年里，在100万大气压以上的高压下，在氢化合物中发现了接近室温的超导性，创造了向超导态转变温度的新记录。该项目将重点寻找具有更高转变温度和更低压力的材料。这一发现将有助于确定高温超导性的关键参数。该项目的结果将允许改进新型超导体的理论模型，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性。我们将开发一种更简单的方法来合成这些化合物，并通过电输运测量来探测高压下的超导性。我们的新方法将使用薄膜，并有望使高压超导体的研究进入更多的研究小组，从而激发新的活动。

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.