rf-SQUID和YBCO颗粒特性  

rf-SQUID AND THE GRAIN PROPERTY OF YBCO

作　　者：刘东[1] 杨涛[1] 陈新航 孙自强[1] 李建平[2] 汪京荣[2] 吴晓祖[2] 张朝兴[3] 张宏斌[3] 

机构地区：[1]西北大学物理系 [2]西北有色金属研究院 [3]合肥低温电子研究所

出　　处：《低温与超导》1991年第1期40-44,共5页Cryogenics and Superconductivity

基　　金：陕西省科学基金

摘　　要：研究了YBCO高温超导rf—SQUID的制备、V_(?)—φe特性与材料性质的关系,讨论了器件颈缩线度远大于材料相干长度的原因。认为如果能正确理解并合理利用高T_c超导体的颗粒特性,固态反应工艺制备的高T_c超导材料仍能满足某些应用中高性能器件的要求。The relations about the preparing of YBCO rf-SQUID,the characteristic of Vrf-e,and the property of material have been studied.The reason why necked size of the device is far larger than the coherence length of the material has been discussed.It is belived, if the grain property of h-igh Tc superconductors can be understood correctly and utilized rationally, some requirements of excellent devices with Tc materials which are prepared by general solid state reacted technique can be satisfied.

关 键 词：超导材料 YBCO SQUID 颗粒性 制备 

分 类 号：TM262.014[一般工业技术—材料科学与工程]