| (BiPb)-Sr-Ca-Cu-O2223相高Tc超导体磁通钉扎与蠕动 |
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| 引用本文： | 金新,张贻瞳,鹿牧,张长贵,颜涌,于杨,沈剑沧,姚希贤. (BiPb)-Sr-Ca-Cu-O2223相高Tc超导体磁通钉扎与蠕动[J]. 物理学报, 1991, 40(4): 630-633 |
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| 作者姓名： | 金新 张贻瞳 鹿牧 张长贵 颜涌 于杨 沈剑沧 姚希贤 |
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| 作者单位： | 南京大学物理系,南京,210008 |
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| 摘 要： | 本文介绍了(BiPb)-Sr-Ca-Cu-O2223相高Tc超导体烧结工艺,用振动样品磁强计测量了磁化强度地豫率随外磁场的变化,并相应求得钉扎势U0随外磁场的依赖关系。发现在0—0.23T外磁场范围内U0与外磁场B的关系为U0-B-1/2与Palstra对单晶用电阻展宽实验所得结果有类似的函数形式。关键词：
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| 关 键 词： | 高Tc 超导体 磁通 钉扎 蠕动 |
| 收稿时间： | 1990-07-20 |
MAGNETIC FLUX PINNING AND CREEP IN (BiPb)-Sr-Ca-Cu-O 2223 PHASE HIGH-Tc SUPERCONDUCTOR |
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| JIN XIN,ZHANG YI-TONG,LU MU,ZHANG CHANG-GUI,YAN YONG,YU YANG,SHEN JIAN-CANG and YAO XI-XIAN. MAGNETIC FLUX PINNING AND CREEP IN (BiPb)-Sr-Ca-Cu-O 2223 PHASE HIGH-Tc SUPERCONDUCTOR[J]. Acta Physica Sinica, 1991, 40(4): 630-633 |
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| Authors: | JIN XIN ZHANG YI-TONG LU MU ZHANG CHANG-GUI YAN YONG YU YANG SHEN JIAN-CANG YAO XI-XIAN |
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| Abstract: | The preparing method of (BiPb)-Sr-Ca-Cu-O 2223 phase high-Tc superconductor is introduced. The magnetic relaxation rate dependence on applied magnetic field was measured by using a vibrating sample magnetometer. From the above results, the relationship of activation energy U0 vs. applied magnetic fuild B is discussed. We found that the functional form is U0-B-a in the magnetic field range of 0-0.23 T. The results is similar with that of Pa-lstra based on resistance broadening experiment for single crystals. |
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