| CeO_2和Y_2Ba_1Cu_1O_(5-δ)共同掺杂对Y_1Ba_2Cu_3O_(7-δ)的超导电性及其晶格结构的影响 |
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| 引用本文： | 张永福,孙爱民,王洁琼,周敏,孙丽娜,韩佩佩.CeO_2和Y_2Ba_1Cu_1O_(5-δ)共同掺杂对Y_1Ba_2Cu_3O_(7-δ)的超导电性及其晶格结构的影响[J].低温与超导,2013,41(1):23-26. |
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| 作者姓名： | 张永福 孙爱民 王洁琼 周敏 孙丽娜 韩佩佩 |
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| 作者单位： | 西北师范大学物理与电子工程学院,兰州,730070 |
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| 基金项目： | 甘肃省高等学校基本科研业务费项目 |
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| 摘 要： | 采用固相反应法成功制备出一批Y123与Y211的摩尔比为1∶0.47的混合物,并在此混合物的基础上掺入CeO2,掺入的比例x分别为0.5wt%、1.0wt%、2.0wt%、3.0wt%、4.0wt%。采用了X-射线衍射仪对样品的晶格结构进行了分析,测量结果表明:x=1.0wt%时掺杂效果最好,同时也充分说明Y123的晶格结构与其超导电性之间存在着一种内在的必然关联。并通过对其测试临界转变温度以及转变宽度,测量结果也充分验证了上述结论。
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| 关 键 词： | 高温超导材料 掺杂 超导电性 |
Effect of Y2Ba1Cu1O5-δ and CeO2 doping on superconducting properties and Structure of Y1Ba2Cu3O7-δ |
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| Zhang Yongfu
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Sun Aimin
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Wang Jieqiong
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Zhou Min
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Sun Lina
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Han Peipei.Effect of Y2Ba1Cu1O5-δ and CeO2 doping on superconducting properties and Structure of Y1Ba2Cu3O7-δ[J].Cryogenics and Superconductivity,2013,41(1):23-26. |
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| Authors: | Zhang Yongfu Sun Aimin Wang Jieqiong Zhou Min Sun Lina Han Peipei |
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| Institution: | 1.College of Physics and Electronic Engineering of Northwest Normal University,Lanzhou 730070,China) |
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| Abstract: | A series of superconductor samples that the molar ratio of Y123 and Y211 is 1: 0.47 were prepared by solid-state reaction method.CeO2 was doped into samples with x proportion of 0.5 wt %,1.0wt%,2.0wt%,3.0wt%,4.0wt%.The paper adopted the X-ray diffraction to analyze the sample lattice structure.The results show that1.0wt% is the best doping ration.At the same time,this paper also analyzed intrinsic association existing between lattice structure and superconductivity.And through testing critical transition temperature and changing the width,measuring results validate the above conclusion. |
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| Keywords: | High-temperature superconducting materials Doping Superconductivity |
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