| 前驱液成分对TFA-MOD法制备YBa2Cu3O7-x薄膜超导性能的影响 |
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| 引用本文： | 丁发柱,古宏伟. 前驱液成分对TFA-MOD法制备YBa2Cu3O7-x薄膜超导性能的影响[J]. 物理学报, 2010, 59(11): 8142-8147 |
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| 作者姓名： | 丁发柱 古宏伟 |
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| 作者单位： | 中国科学院电工研究所应用超导重点实验室,北京 100190 |
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| 基金项目： | 国家自然科学基金(批准号:50672011)资助的课题. |
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| 摘 要： | 采用三氟乙酸盐-金属有机沉积法(TFA-MOD)在铝酸镧单晶基体上制备了YBa2Cu3O7-x (YBCO)超导薄膜.通过改变前驱液的成分,研究了金属元素的不同化学计量比对YBCO薄膜的结构和性能的影响.结果表明,按照钇盐Y(CH3COO)3与钡盐Ba(CH3COO)2的比例为Y ∶Ba=1 ∶1.5时所制备的YBCO薄膜的临界电流密度比严关键词：三氟乙酸盐-金属有机沉积钇钡铜氧薄膜前驱液成分磁通钉扎
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| 关 键 词： | 三氟乙酸盐-金属有机沉积 钇钡铜氧薄膜 前驱液成分 磁通钉扎 |
| 收稿时间： | 2010-05-04 |
Effect of precursor composition on superconductivity properties of YBCO film prepared by TFA-MOD method |
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| Ding Fa-Zhu,Gu Hong-Wei. Effect of precursor composition on superconductivity properties of YBCO film prepared by TFA-MOD method[J]. Acta Physica Sinica, 2010, 59(11): 8142-8147 |
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| Authors: | Ding Fa-Zhu Gu Hong-Wei |
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| Affiliation: | Key Laboratory of Applied Superconductivity,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory of Applied Superconductivity,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China |
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| Abstract: | The YBCO films were prepared on LAO single crystal by TFA-MOD process. The structure and properties of YBCO films were investigated through changing the Y123 stoichiometry. It is found that higher JC values in self-filed of YBCO films are achieved by using the starting solution with the Ba ∶Y ratio of 1.5 ∶1. X- ray diffraction analysis revealed that Y2Cu2O5 phases are formed in the final YBCO films,which may lead to very effective vortex pinning and then enhance the JC of YBCO films. |
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| Keywords: | TFA-MOD YBCO film precursor composition flux pinning |
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