| Bi系高温超导体的119Sn的穆斯堡尔谱研究 |
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| 引用本文： | 张道元,杨碚芳,柏林森,吴泳华,王晓洋,阮耀钟.Bi系高温超导体的119Sn的穆斯堡尔谱研究[J].物理学报,1992,41(8):1353-1356. |
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| 作者姓名： | 张道元 杨碚芳 柏林森 吴泳华 王晓洋 阮耀钟 |
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| 作者单位： | (1)中国科学技术大学材料科学与工程系; (2)中国科学技术大学基础物理中心; (3)中国科学技术大学物理系,合肥230026 |
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| 基金项目： | 国家超导技术联合研究开发中心资助的课题 |
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| 摘 要： | 本文采用119Sn作为探针原子,对Bi1.68Pb0.32Sr1.75Ca1.75Cu2.65-xSnxOy(0.2≤x≤0.8)样品进行室温下穆斯堡尔谱测量,结合X射线衍射与电性能测量结果,分析Sn在样品中的占位情况与电性能之间的关系,并得出四配位Cu位对高Tc相的超导电性起着较关键作用的结论。
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| 关 键 词： | 高Tc 超导体 穆斯堡尔谱 Bi系 |
| 收稿时间： | 1991-07-29 |
MOSSBAUER EFFECT STUDY OF Bi TYPE HIGH-TEMPERA TURE SUPERCONDUCTOR 119Sn |
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| ZHANG DAO-YUAN,YAN PEI-FANG,BAI LIN-SEN,WU YONG-HUA,WANG XIAO-YANG and RUAN YAO-ZHONG.MOSSBAUER EFFECT STUDY OF Bi TYPE HIGH-TEMPERA TURE SUPERCONDUCTOR 119Sn[J].Acta Physica Sinica,1992,41(8):1353-1356. |
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| Authors: | ZHANG DAO-YUAN YAN PEI-FANG BAI LIN-SEN WU YONG-HUA WANG XIAO-YANG and RUAN YAO-ZHONG |
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| Abstract: | In this work, 119Sn is used as probe-atom, nd room temperature Mossbauer measurement of Bi1.68Pb0.32Sr1.75Ca1.75Cu2.65-xSnxOy(x=0.2-0.8) sample is performed. Combined with the results of X-ray diffraction and electric characteristic measurement, the relation between the occupancy of Sn in the sample and its electric characteristics is analysed, and an conclusion that squarecoordinated Cu performs a chief influence on the electric characteristic of high-transition-temperature (Tc) phase superconductor is reached. |
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