Research Initiation: Fundamental Studies & Device Applications of Superconductors at Rf, Microwave & MM-Wave Frequencies (REU Supplement)

该研究启动奖专注于在“DC”至75 GHz的频率范围内对高温超导体的高频电磁研究。主要工作包括：(1)通过测量表面电阻和穿透深度作为温度、频率和外加磁场的函数，对电磁响应进行基础性研究。这些结果将被解释为提供关于超导状态的性质以及这些材料中涡旋和磁通体的动力学的基本信息。(2)块体单片、单晶和涂层材料的制造和加工。研究了材料加工对超导体理想高频响应的影响。(3)整体整体和涂层形式的器件的制造和测试。将研究的具体器件包括：微波和毫米波频率的高Q全超导腔、交叉指间滤波器和X波段和更高频率的波导。设备性能将被确定，并与预期的理想估计值相关联，并将检验材料加工的效果。

This Research Initiation Award focusses on high frequency electromagnetic studies of high-transition-temperature superconductors, between frequencies covering "dc" to 75 GHz. The proposed work involves: (1) Fundamental studies of the electromagnetic response via measurements of the surface resistance and the penetration depth as functions of temperature, frequency and applied magnetic field. The results will be interpreted to yield fundamental information regarding the nature of the superconducting state, and the dynamics of vortices and fluxoids in these materials. (2) Materials fabrication and processing in bulk monolithic, single crystal forms and also coatings. The effects of materials processing on the ideal high frequency response of the superconductors will be studied. (3) Fabrication and testing of devices in bulk monolithic and coated forms. The specific devices that will be studied are: high Q fully superconducting cavities at microwave and mmwave frequencies, interdigital filters, and waveguides at X-band and higher frequencies. the device performance will be determined, correlated with expected ideal estimates, and the effects of materials processing will be examined.