| 在密封和半密封容器内生长Tl2Ba2CaCu2Ox高温超导薄膜的研究 |
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| 引用本文： | 伊长虹,胡芳仁,张庆刚,李洁,陈莺飞,郑东宁.在密封和半密封容器内生长Tl2Ba2CaCu2Ox高温超导薄膜的研究[J].低温与超导,2004,32(2):43-46. |
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| 作者姓名： | 伊长虹 胡芳仁 张庆刚 李洁 陈莺飞 郑东宁 |
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| 作者单位： | 中国科学院物理研究所超导国家重点实验室,北京,100080;山东师范大学物理与电子科学学院,济南,250014;中国科学院物理研究所超导国家重点实验室,北京,100080;山东师范大学物理与电子科学学院,济南,250014 |
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| 基金项目： | 国家自然科学基金，中国科学院资助项目 |
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| 摘 要： | 以铝酸镧 (0 0 1)单晶为基片 ,采用两步法在两种密封条件下制备 Tl2 Ba2 Ca Cu2 Ox(Tl- 2 2 12 )高温超导薄膜。首先利用脉冲激光沉积 (PL D)工艺沉积非晶 Ba2 Ca Cu2 Ox 前驱体薄膜 ;然后前驱体薄膜分别在半密封的氧化铝坩埚和密封的高温钢容器内铊化、结晶形成 Tl- 2 2 12薄膜。在两种密封条件下 ,都可以制备出纯相的 Tl- 2 2 12超导薄膜。但是 ,在坩埚内制备的 Tl- 2 2 12薄膜的 TCo和 SEM均明显好于在钢容器中制备的超导薄膜
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| 关 键 词： | T1-2212 铊化 高温超导 薄膜 PLD方法 |
| 修稿时间： | 2004年2月15日 |
The Study of Growth of Tl2Ba2CaCu2Ox Superconducting Thin Films in Semi-closed and Sealed Containers |
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| Yi Changhong ,Hu Fangren ,Zheng Qinggang ,Li Jie ,Chen Yingfei ,Zheng Dongning.The Study of Growth of Tl2Ba2CaCu2Ox Superconducting Thin Films in Semi-closed and Sealed Containers[J].Cryogenics and Superconductivity,2004,32(2):43-46. |
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| Authors: | Yi Changhong Hu Fangren Zheng Qinggang Li Jie Chen Yingfei Zheng Dongning |
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| Institution: | Yi Changhong 1,2,Hu Fangren 1,Zheng Qinggang 2,Li Jie 1,Chen Yingfei 1,Zheng Dongning 1 |
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| Abstract: | Tl 2Ba 2CaCu 2O 8 (Tl-2212) thin films were fabricated on (001) LaAlO 3 substrates by a two-step technique in a semi-closed aluminate crucible and a sealed steel container, respectively. First, the amorphous precursor films wer deposited by the pulsed laser deposition (PLD) method, and then they were thalliated in two different containers. Almost pure phase Tl-2212 thin films can be prepared in both of the containers. However, the quality of the as-annealed films thalliated in crucible is better than that of the films prepared in the steel container. |
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| Keywords: | T1-2212 |
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