在Ag基带上用PLD法沉积YBCO超导薄膜的研究  

DEPOSITION OF YBCO THIN FILMS ON AG SUBSTRATES BY PLD

作　　者：高菲[1] 刘丹敏[1] 刘星[1] 郝斐[1] 戴琳[1] 周美玲[1] 

机构地区：[1]北京工业大学材料学院,北京100022

出　　处：《低温物理学报》2005年第A02期779-783,共5页Low Temperature Physical Letters

基　　金：国家863计划(批准号:2002AA306221)~~

摘　　要：Ag是目前唯一不需要隔离层的高温超导基带材料,而且研究表明,在YBCO中掺入适量的Ag,将有利于超导性能的改善和表面电阻的降低.本研究采用准分子激光法(PLD),在经不同表面处理的{110}<110>取向的双轴织构银基带上直接沉积了YBCO薄膜,得到了强双轴织构的超导膜,系统地研究了银基带中的孪晶、晶界等缺陷对YBCO超导微观组织的影响.Ag is the unique HTSC ribbon metal without any buffer layer. Some researches have reported that Ag doping in YBCO can improve the mechanical and electrical properties of oxide superconductors. In this paper, superconducting YBCO films were grown by PLD on {110}〈110〉 textured Ag tapes. A strong biaxially textured superconducting film was obtained. The effects of twin and crystal boundaries on the microcosmic structures of YBCO thin films were investigated.

关 键 词：YBCO PLD Ag基带 

分 类 号：O511.3[一般工业技术—材料科学与工程]