| Bi1.6Pb0.4Sr2Ca2Cu3Ox超导体高温电阻率的研究 |
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| 引用本文： | 张留碗,陈廷国.Bi1.6Pb0.4Sr2Ca2Cu3Ox超导体高温电阻率的研究[J].物理学报,1998,47(11):1906-1911. |
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| 作者姓名： | 张留碗 陈廷国 |
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| 作者单位： | 清华大学现代应用物理系,北京 100084 |
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| 摘 要： | 研究了高温热处理对BPSCCO-2223超导体高温电阻率的影响，观察到电阻率的奇异变化．实验结果表明，高温氮气退火，除Bi-O层外，Cu-O层也发生脱氧，同时伴随金属离子的运动．氧含量和氧重布及金属离子的运动引起了BPSCCO-2223相微结构的多样性．
关键词：
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| 关 键 词： | BPSCCO 高温热处理 高Tc 超导体 高温电阻率 |
| 收稿时间： | 1997-12-22 |
STUDY ON THE HIGH-TEMPERATURE RESISTIVITY OF Bi1.6Pb0.4Sr2Ca2Cu3Ox |
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| ZHANG LIU-WAN and CHEN TING-GUO.STUDY ON THE HIGH-TEMPERATURE RESISTIVITY OF Bi1.6Pb0.4Sr2Ca2Cu3Ox[J].Acta Physica Sinica,1998,47(11):1906-1911. |
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| Authors: | ZHANG LIU-WAN and CHEN TING-GUO |
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| Abstract: | The effects of heat treatments on the resistivity of BPSCCO-2223 superconductor were studied. The anomalous behavior in high-temperature resistivity was observed. It was shown that upon annealing in N2 at high temperatures, the oxygen escaped not only from Bi-O layer but also from Cu-O layer accompanied with the movement of metal ions. The change in oxygen content and the redistri-bution of oxygen and metal atoms diversified the microstructure of BPSCCO-2223 phase. |
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