摘要
仔细制备了两个具有不同J_C值的YBCO空腔谐振器,在10GHz频率上测得它们的Q值为10~5。从测量结果可以看到,J_C值高的样品其表面电阻R_S具有较窄的转变宽度,J_C值低的样品其R_S的转变宽度则较宽。这意味着如同J_C那样,高T_C超导体颗粒边界的性质也影响其表面电阻。
Two YBCO cavity resonators that have different jc have been carefully prepared, almost by the same technique. Both of them have Q about 105 at 10 GHz, The measured results saggest that sample which has high jc shows narrow transition width of Rs,which has low jc shows wide width. These facts mean that Rs as well as jc is closely relative to the property of the grain boundaries of high Tc superconductors.
出处
《低温与超导》
CAS
CSCD
北大核心
1991年第2期53-56,共4页
Cryogenics and Superconductivity
