| 前驱膜形貌对TFA-MOD技术生长YBCO超导薄膜的影响 |
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| 引用本文： | 张云,张国防,金利华,王耀,于泽铭,李成山,闫果,卢亚锋.前驱膜形貌对TFA-MOD技术生长YBCO超导薄膜的影响[J].低温物理学报,2010(2). |
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| 作者姓名： | 张云 张国防 金利华 王耀 于泽铭 李成山 闫果 卢亚锋 |
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| 作者单位： | 应用表面与胶体化学教育部重点实验室;陕西师范大学化学与材料科学学院;西北有色金属研究院; |
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| 基金项目： | 国家863计划项目(2006AA03Z204,2008AA03Z201)~~ |
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| 摘 要： | 本文采用三氟乙酸盐-金属有机沉积(TFA-MOD)技术在LaAlO3(00l)单晶基片上、在不同的低温热处理条件下制备出不同形貌的前驱膜.从金相显微镜(OM)和扫描电镜(SEM)观察可以看出,低温预分解时造成前驱膜的形貌不完整性在高温处理后并没有消除.对高温热处理后的YBCO成相膜用X射线衍射进行了物相定性分析,用Jc-Scan Leipzig系统对超导薄膜进行了超导性能分析.结果表明,前驱膜的形貌不完整性造成高温成相阶段样品杂相出现和超导性能降低.经过对低温热处理条件的优化,得到表面形貌完整的前驱膜,避免了高温成相阶段杂相出现,提高了涂层导体的超导性能,Jc可以超过1.5MA/cm2.
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| 关 键 词： | 前驱膜形貌 TFA-MOD YBCO 超导薄膜 |
INFLUENCE OF PRECURSOR FILM MORPHOLOGY ON TFA-MOD YBCO SUPERCONDUCTING FILMS |
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| ZHANG Yun ZHANG Guo-fang JIN Li-hua WANG Yao YU Ze-ming LI Cheng-shan YAN Guo LU Ya-feng Key Laboratory of Applied Surface , Colloid Chemistry ,Ministry of Education,Xi'an ,School of Chemistry , Materials Science,Shaanxi Normal University,Northwest Institute for Nonferrous Metal Research,Xi'an,Shanxi.INFLUENCE OF PRECURSOR FILM MORPHOLOGY ON TFA-MOD YBCO SUPERCONDUCTING FILMS[J].Chinese Journal of Low Temperature Physics,2010(2). |
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| Authors: | ZHANG Yun ZHANG Guo-fang JIN Li-hua WANG Yao YU Ze-ming LI Cheng-shan YAN Guo LU Ya-feng Key Laboratory of Applied Surface Colloid Chemistry Ministry of Education Xi'an School of Chemistry Materials Science Shaanxi Normal University Northwest Institute for Nonferrous Metal Research Xi'an Shanxi |
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| Institution: | Shanxi Normal University |
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| Abstract: | In this paper,different kinds of morphology of YBCO precursor films on LaAlO3 (001) single crystal substrates was obtained by TFA-MOD on different calcining conditions. From optical microscope (OM) and scanning electron microscopy (SEM),it was found that the imperfections of precursor film morphology formed at the calcining stage could not be eliminated at the later firing process. The structure and property of crystalline YBCO films were characterized by X-ray diffraction and Jc-scan Leipzig system. Our re... |
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| Keywords: | Superconducting film YBCO Precursor film morphology TFA-MOD |
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