Superconductor-Based Electron Transfer Studies Below the Critical Temperature

基于超导体的临界温度以下电子转移研究

• 批准号: 9221589
• 负责人: John McDevitt
• 金额: $ 27.75万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-01 至 1996-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221589&HistoricalAwards=false
• 关键词: Superconductor; Based; Electron; Transfer; Studies

This research is focussed on the induction of superconductivity into organic conductors via the proximity effect through the use of hybrid organic conductor/high temperature superconductor structures. Using chemical and electrochemical techniques, a number of structures suitable for the study of superconducting proximity effect are fabricated. One major goal of this work is to study electron transfer phenomena which occur at or near superconductor/molecular phase interfaces. Measurements are conducted above and below the superconducting transition temperature to search for superconducting quantum electron transfer phenomena. Cuprate superconductors are used for the majority of the studies because measurements below transition temperature can be completed readily. The second goal of this research is to fabricate proximity devices based on high temperature superconductor thin films coated with molecular conductors. The modulation of the superconducting transition temperature of the underling cuprate material then is examined. Also, the influence of polymer layer on the transition temperature of the superconductor film is explored. In recent studies, we have demonstrated the first molecular switch for controlling superconductivity. The ultimate goal of the proposed research is to develop new types of organic conductor/ superconductor circuits, devices and sensors. Through the study of a variety of molecular conductor/high temperature superconductor structures, information will be acquired that may help to elucidate the nature of superconductivity in the ceramic superconductors and shed light on the conduction mechanism in the polymers. The use of conductive polymers also should provide alternative strategies for making electrical contacts to high-temperature superconductors. By incorporating an organic conductor into such systems, some of the degradation at these interfaces may be eliminated.

这项研究的重点是超导性的诱导 通过邻近效应， 混合有机导体/高温超导体 结构. 利用化学和电化学技术， 许多结构适合于研究超导 制造邻近效应。 这项工作的一个主要目标是 研究电子转移现象发生在或接近 超导体/分子相界面 测量 在超导转变之上和之下进行 超导量子电子转移温度研究 现象。 铜酸盐超导体用于大多数的 这些研究是因为低于转变温度的测量可以 完成容易。 本研究的第二个目标是 制造基于高温的接近器件 分子导体包覆的超导体薄膜。 的 的超导转变温度的调制 然后检查下面的铜酸盐材料。 此外，影响力 聚合物层的转变温度 超导薄膜的研究。 在最近的研究中，我们证明了第一个分子开关 来控制超导性。 的最终目标 拟议的研究是开发新型有机导体/ 超导电路、器件和传感器。 通过研究 各种分子导体/高温超导体 结构，将获得可能有助于阐明 陶瓷超导体中的超导性质， 阐明了聚合物中的导电机制。 使用 导电聚合物还应该提供替代策略， 与高温超导体形成电接触。 通过 将有机导体结合到这样的系统中， 可以消除这些界面处的退化。