摘要
利用3cm波段矩形波导谐振腔TE_(103)模对YBaCuO超导材料的微波表面电阻进行了测量,观察到了在转变温度时腔的Q值的突然变化。在液氮温度时的表面电阻约为正常电阻的20％。实验并观察了所测表面电阻值随样品厚度的变化情况。
The microwave surface resistance of YBCO superconducting material was measured in a TE_103 rectangular cavity at the 3cm waveband. We observed that the quality factor Q of the cavity changed abruptly at the transition temperature of the superconductor. The surface resistance at liquid Nitrogen temperatures was found to be about 20% of its normal resistance: The variation in surface resistance with sample thickness was also observed in the experiment.
出处
《南京大学学报（自然科学版）》
CAS
CSCD
1990年第3期425-429,共5页
Journal of Nanjing University（Natural Science）
基金
国家超导技术研究开发中心资助
国家自然科学基金资助
关键词
超导材料
YBCO
微波表面电阻
microwave surface resistance
YBCO superconducting material quality factor
transition temperature
