Effect of large-angle grain boundaries on the microwave surface resistance of YBa_2Cu_3O_7 thin films  

作　　者：田永君 许世发 李林 刘军政 郭丽萍 吕惠宾 周岳亮 陈正豪 崔大复 杨国桢 

机构地区：[1]Department of Materials Science and Engineering,Yanshan University,Qinhuangclas 066004, China [2]Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

出　　处：《Chinese Science Bulletin》1995年第15期1249-1252,共4页

基　　金：Project supported by the National Center for Research and Development on Superconductivity.

摘　　要：Since the discovery of high-temperature superconductor YBa₂Cu₃O₇（YBCO） people aremuch concerned about its microwave surface resistance. It was found that although themicrowave surface resistance of c-axis oriented YBCO thin films is an order of magnitudelower than Cu, it is much higher than the value predicted by the BCS theory, and also

关 键 词：high-temperature SUPERCONDUCTING THIN films microwave surface resistance large-angle GRAIN boundaries. 

分 类 号：O484[理学—固体物理]