ROW: Experimental Study on the Finite-Frequency Response of the High Temperature Superconductors

这个项目将研究高温超导体的有限频率电导率。有限频率响应可以为理解这些材料的超导机制提供重要线索。它在各种应用中也是必不可少的，例如低损耗传输线或谐振腔的建设，其性能受到超导体有限频率耗散的限制。该项目将重点开发一种无线电频谱技术，以测量0.4 -4 GHz频率范围内超导状态下的电导率。在较低的频率，实验将进入一个尚未探索的区域，这些材料的射频电导率。本提案研究了高tc材料在无线电频率范围内（重叠调频广播和飞机雷达频率）电流的电阻。电阻在这些频率下的行为尚未测量，并将提供有关高tc材料的基本信息。它在各种应用中也是必不可少的，例如低损耗传输线或谐振腔的建设，其性能受到超导体有限频率耗散的限制。* * *

9306951 Andrei This project will investigate the finite frequency conductivity of high-Tc superconductors. The finite frequency response could provide important clues to the understanding of the mechanism of superconductivity in these materials. It is also essential in various applications such as the construction of low loss transmission lines or resonant cavities, where the performance is limited by the finite frequency dissipation in the superconductor. The project will focus on developing a radio frequency spectroscopic technique to measure the conductivity in the superconducting state in the frequency range O.4-4 GHz. At the lower frequencies, the experiments will access an as yet unexplored region of the rf conductivity of these materials. %%% This proposal investigates the resistance of high-Tc materials for currents in the radio frequency range (overlapping FM broadcasts and airplane radar frequencies). The behavior of the resistance at these frequencies has not been measured, and will provide fundamental information about the high-Tc materials. It is also essential in various applications such as the construction of low loss transmission lines or resonant cavities, where the performance is limited by the finite frequency dissipation in the superconductor. ***