| 蓝宝石基片上制备双面Tl_2Ba_2CaCu_2O_8超导薄膜 |
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| 引用本文： | 游峰,阎少林,季鲁,谢清连,王争,岳宏卫,赵新杰,方兰.蓝宝石基片上制备双面Tl_2Ba_2CaCu_2O_8超导薄膜[J].低温与超导,2010,38(1). |
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| 作者姓名： | 游峰 阎少林 季鲁 谢清连 王争 岳宏卫 赵新杰 方兰 |
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| 作者单位： | 1. 南开大学信息技术科学学院电子信息科学与技术系,天津,300071
2. 广西师范学院物理与电子工程学院,南宁,530001 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(2006CB601006);;国家高技术研究发展计划863计划(2009AA03Z208)资助 |
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| 摘 要： | 在蓝宝石基片上,以CeO2为缓冲层制备了高质量的双面Tl2Ba2CaCu2O8(Tl-2212)超导薄膜。以金属铈靶作为溅射源生长了c轴取向的CeO2缓冲薄膜,并对CeO2薄膜进行了高温处理,有效改善了其结晶质量和表面形貌。采用两步法制备了双面的Tl-2212超导薄膜。XRD测试显示,薄膜为纯的Tl-2212相,且其晶格c轴垂直于衬底表面。超导薄膜的Tc为106K,Jc(77K,0T)为3.5MA/cm2,微波表面电阻Rs(77K,10GHz)为390μΩ。
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| 关 键 词： | Tl-2212超导薄膜 蓝宝石基片 CeO2缓冲层 |
Fabrication and properties of double-side Tl_2Ba_2CaCu_2O_8 superconducting thin film on sapphire substrate |
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| You Feng,Yan Shaolin,Ji Lu,Xie Qinglian,Wang Zheng,Yue Hongwei,Zhao Xinjie,Fang Lan.Fabrication and properties of double-side Tl_2Ba_2CaCu_2O_8 superconducting thin film on sapphire substrate[J].Cryogenics and Superconductivity,2010,38(1). |
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| Authors: | You Feng Yan Shaolin Ji Lu Xie Qinglian Wang Zheng Yue Hongwei Zhao Xinjie Fang Lan |
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| Institution: | 1.Department of Electronics;Nankai University;Tianjin 300071;China;2.College of Physics and Electronic Engineering;Guangxi Teachers Education University;Nanning 530001;China |
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| Abstract: | High quality Tl2Ba2CaCu2O8(Tl-2212) superconducting thin films were fabricated on CeO2 buffered double-side sapphire substrates.Using the metal cerium target as the sputtering source,CeO2 buffer films with c-axis orientation were deposited by RF reactive magnetron sputtering technique,and high temperature treatment was carried out to the CeO2 films to improve the crystal quality and surface morphology.Then,two-side Tl-2212 superconducting films were fabricated on CeO2 buffered sapphire substrates using two-... |
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| Keywords: | Tl-2212 superconducting film Sapphire substrate CeO2 buffer layer |
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