| 铁磁复合对Bi2212相超导电性的抑制 |
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| 引用本文： | 张建武,贾旭,张权,郑保忠,王关生,浦其荣,丁泽军.铁磁复合对Bi2212相超导电性的抑制[J].低温物理学报,2005,27(1):519-523. |
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| 作者姓名： | 张建武 贾旭 张权 郑保忠 王关生 浦其荣 丁泽军 |
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| 作者单位： | 中国科技大学结构中心物理系,合肥230026 |
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| 基金项目： | This work was supported by the Project-sponsored by SRF for R0CS, SEM, P.R. China |
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| 摘 要： | 我们成功制备了由高温超导Bi2212相和铁磁LCMO相两相复合的系列陶瓷样品．复合陶瓷样品的相分析表明无杂相生成，电阻温度曲线显示出铁磁性LCMO相对Bi2212相超导电性有显著抑制作用，随LCMO相含量增加，复合样品的超导转变温度逐渐降低，进而失去超导电性．在分析实验数据基础上，我们对铁磁性LCMO相对Bi2212相超导电性的影响进行了研究，并简要探讨了铁磁复合对Bi2212相超导电性抑制机理．
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| 关 键 词： | 超导电性 Bi2212 复合物 |
| 收稿时间： | 03 25 2005 12:00AM |
DEPRESSION OF SUPERCONDUCTIVITY INDUCED BY FERROMAGNETIC COMPONENT IN Bi2212 COMPOSITE |
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| ZHANG JIAN-WU,JIA XU,ZHANG-QUAN,ZHENG BAO-ZHONG,WANG GUAN-SHENG,PU QI-RONG,DING ZE-JUN.DEPRESSION OF SUPERCONDUCTIVITY INDUCED BY FERROMAGNETIC COMPONENT IN Bi2212 COMPOSITE[J].Chinese Journal of Low Temperature Physics,2005,27(1):519-523. |
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| Authors: | ZHANG JIAN-WU JIA XU ZHANG-QUAN ZHENG BAO-ZHONG WANG GUAN-SHENG PU QI-RONG DING ZE-JUN |
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| Institution: | 1.Structure Research Laboratory, University of Science and Technology of China, Hefei 230026;2. Department of Physics, University of Science and Technology of China, Hefei 230026 |
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| Abstract: | A series of ceramic composites consisting of high-Tc superconductor Bi2212 and ferromagnetic LCMO were successfully prepared. The analysis indicates that there is no impurity to be generated in the composites, and the superconductivity of Bi2212 can be depressed dramatically by ferromagnetic LCMO component, where Tc of Bi2212 composite decreases so as to disappear with ferromagnetic LCMO content increase. The effect of ferromagnetic LCMO component on superconductivity of Bi2212 composite and the mechanism of the depression of superconductivity in the composites have been investigated briefly. |
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| Keywords: | superconductivity Bi2212 composite |
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