| Y_(0.9)Eu_(0.1)Ba_2Cu_3O_(7-y)超导体中的鱼尾效应 |
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| 引用本文： | 方明虎,蔡盟,叶锡生,焦正宽,张其瑞.Y_(0.9)Eu_(0.1)Ba_2Cu_3O_(7-y)超导体中的鱼尾效应[J].浙江大学学报(理学版),1995(Z1). |
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| 作者姓名： | 方明虎 蔡盟 叶锡生 焦正宽 张其瑞 |
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| 作者单位： | 浙江大学物理系!杭州310027 |
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| 摘 要： | 通过对Y_(0.9)Eu_(0.1)Ba_2Cu_3O_(7-y)样品Jc(H)关系以及磁通蠕动行为的系统研究,发现:当T>40K时,其Jc值随磁场的增大呈现非单调变化.作者认为,Jc(H)的这种非单调性起源于集体磁通蠕动的维度转变.
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| 关 键 词： | 高温超导体 磁通钉扎 鱼尾效应 |
Fishtail Effect in Y_(0.9)Eu_(0.1)Ba_2Cu_3O_(7-y) Superconductor |
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| Fang Minghu Cai Meng Ye Xisheng Jiao Zhengkuan Zhang Qirui.Fishtail Effect in Y_(0.9)Eu_(0.1)Ba_2Cu_3O_(7-y) Superconductor[J].Journal of Zhejiang University(Sciences Edition),1995(Z1). |
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| Authors: | Fang Minghu Cai Meng Ye Xisheng Jiao Zhengkuan Zhang Qirui |
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| Abstract: | A systematic study is carried out on Jc(H) dependence and flux creep behaviors in Y0.9 Eu0. 1 Ba2Cu3O7-y samples. It is found that Jc(H) dependence is nonmonotonous with the increasing field when T >40K. Authors believe that, nonmonotonous Jc(H) dependence is a reseult of a dimensional crossover of collective flux creep. |
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| Keywords: | high Tc Superconductor flux pinning fishtail effect |
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