| 在金属基片上激光沉积YBCO超导薄膜 |
| |
| 引用本文： | 王又青,粟飙,王秋良,安承武,范永昌,黄新堂,陆冬生.在金属基片上激光沉积YBCO超导薄膜[J].光学学报,1999,19(5):47-650. |
| |
| 作者姓名： | 王又青 粟飙 王秋良 安承武 范永昌 黄新堂 陆冬生 |
| |
| 作者单位： | 1. 华中理工大学激光技术国家重点实验室,武汉,430074
2. 华中师范大学物理系,武汉,430074 |
| |
| 摘 要： | 介绍了在金属基片上激光沉积缓冲层和ＹＢａ２Ｃｕ３ｏ７－ｘ（ＹＢＣＯ）高温超导薄膜的研究结果。在带ｙｔｔｒｉａ－ｓｔａｂｉｌｉｚｅｄ－ｚｉｒｃｏｎｉａ（ＹＳＺ）缓冲层的ＮｉＣｒ合金基片上，激光原位沉积出ＹＢＣＯ超导薄膜，薄膜的零电阻转变温度度４８Ｋ，７７Ｋ时临界电流密度约为２００Ａ／ｃｍ＾２；缓冲层的取向可以通过选择适当的沉积参数来改善；用扫描隧道电子显微镜对ＹＢＣＯ薄膜的微观结构分析表明：完善的螺
|
| 关 键 词： | 激光沉积 超导薄膜 金属基片 螺旋生长结构 缓冲层 |
| 收稿时间： | 1997/10/9 |
YBCO Superconducting Thin Film Preparation on Metallic Substrates by Laser |
| |
| Wang Youqing,Su Biao,Wang Qiuliang,An Chengwu,Fan Yongchang,Huang Xintang,Lu Dongsheng.YBCO Superconducting Thin Film Preparation on Metallic Substrates by Laser[J].Acta Optica Sinica,1999,19(5):47-650. |
| |
| Authors: | Wang Youqing Su Biao Wang Qiuliang An Chengwu Fan Yongchang Huang Xintang Lu Dongsheng |
| |
| Abstract: | YBa2Cu3O7-x(YBCO) superconducting thin films with Tc(R=0) of 84 K and Jc of 2×103 A/cm2 at 77 K, on polycrystalline Ni-based alloys with buffer layers of yttria-stabilized-zirconia (YSZ), are prepared in situ by excimer laser and primarily c-axis oriented. The orientation of laser-deposited YSZ buffer layers on NiCr alloys can be improved by choosing the suitable preparing parameters. The microstructure of the YBCO thin films, investigated with a scanning tunneling microscopy, shows that the spiral growth structure may be an important characteristic of the high quality YBCO superconducting thin films. |
| |
| Keywords: | laser deposition YBCO film metallic substrates spiral growth structure buffer layer |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
