SUPERCONDUCTIVITY AT 77K IN (PB,CU)SR2(CA,Y)CU2O7 BY POSTANNEALING

被引：11
|
作者：
ZHANG, H
CHEN, GS
FENG, SQ
WU, K
ZHU, X
FENG, QR
机构：
[1] Department of Physics, Peking University, Beijing
来源：
SOLID STATE COMMUNICATIONS | 1992年 / 83卷 / 08期
关键词：
D O I：
10.1016/0038-1098(92)90659-W
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The Pb-based layered copper oxide of (Pb0.7CuO.3)Sr2(Y0.6Ca0.4)Cu2Oz was prepared by solid state reaction. X-ray diffraction analysis showed that the sample had a structure isomorphous to the TI-1212 phase. By a post-annealing, without any high pressure treatment, the sample showed superconductivity at 77K, which is higher than the reported values to our knowledge. Our experiments not only simplify the process for preparing Pb-based superconductors, but also give a quite new view for this superconductor.
引用
收藏
页码：601 / 604
页数：4
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