Metallic nanograins: superconducting correlations, Josephson tunneling and conformal field theory

金属纳米颗粒：超导相关性、约瑟夫森隧道效应和共形场理论

• 批准号: DP0344455
• 负责人: Em/Prof Mark Gould
• 金额: $ 17.08万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0344455
• 关键词: Metallic; nanograins; superconducting; correlations; Josephson

Experimental studies of aluminium grains which are a few nanometres in size have exposed unexpected physical characteristics, including pairing interactions which are responsible for bulk superconductivity. Our previous theoretical work has shown that precise information about these nanograins can be gained in the framework of the exact solution of the BCS model. This project will continue our work in this area with an emphasis on investigating the nature of Josephson tunneling between coupled nanograins. The results of this project will have important applications in emerging technologies such as the implementation of Josephson junctions of nanoscale size.

对几纳米大小的铝颗粒的实验研究揭示了意想不到的物理特性，包括负责体超导性的配对相互作用。我们以前的理论工作表明，这些纳米颗粒的精确信息可以在BCS模型的精确解的框架中获得。这个项目将继续我们在这一领域的工作，重点是研究耦合纳米颗粒之间的约瑟夫森隧穿的性质。该项目的结果将在新兴技术中有重要的应用，如纳米尺寸的约瑟夫森结的实现。