Harnessing the Interplay of Superconductivity and Charge Order in Rare-Earth Doped Cuprates for Josephson Junction Applications

利用稀土掺杂铜氧化物中超导性和电荷顺序的相互作用进行约瑟夫森结应用

• 批准号: 580931-2022
• 负责人: Wei, JohnYT
• 金额: $ 1.82万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=762691
• 关键词: Harnessing; Interplay; Superconductivity; Charge; Order

With the Alliance International Quantum Catalyst grant, I propose to forge a research collaboration with 3 experimental condensed matter physics groups in the US, focused on the quantum phenomena of superconductivity (SC) and charge order (CO) that occur in the rare-earth doped cuprates. Our research goal is twofold: 1) to further elucidate the interplay between SC and CO, both believed to be due to strong electron correlations, using a unique combination of x-ray scattering, magnetic resonance and electrical transport probes; 2) to explore concrete ways to harness this interplay of phenomena for Josephson junction applications, using cuprate thin-films and heterostructures synthesized by pulsed laser deposition as well as nanoscale ion-beam etching techniques. The proposed research will re-focus timely attention on cuprate superconductors, which have long been regarded as a technologically disruptive class of quantum materials. Successful outcome of our research will contribute vital new knowledge for developing quantum electronic devices based on cuprates and other complex oxides.

借助国际量子催化剂赠款，我建议与美国的3个实验性凝结物理组进行研究合作，重点介绍了超导性（SC）的量子现象（SC）和电荷顺序（CO）（CO），该现象发生在稀有地掺杂的粉碎层中。 我们的研究目标是双重的：1）进一步阐明了SC和CO之间的相互作用，这两者都使用X射线散射，磁共振和电气传输探针的独特组合。 2）探索利用约瑟夫森结的现象相互作用的具体方法，使用蛋白薄膜和异质结构由脉冲激光沉积以及纳米级离子梁蚀刻技术合成。拟议的研究将重新聚焦在丘比特超导体上，长期以来一直被认为是技术破坏性的量子材料类别。我们研究的成功结果将为基于丘比特和其他复杂氧化物开发量子电子设备提供重要的新知识。