Realization of practical level current densities in Sr0.6K0.4Fe2As2 tape conductors for high-field applications
文献类型：期刊论文
| 作者 | Zhang, XP ; Yao, C ; Lin, H ; Cai, Y ; Chen, Z ; Li, JQ ; Dong, CH ; Zhang, QJ ; Wang, DL ; Ma, YW ; Oguro, H ; Awaji, S ; Watanabe, K |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 104期号:20 |
| ISSN号 | 0003-6951 |
| 通讯作者 | Ma, YW (reprint author), Chinese Acad Sci, Inst Elect Engn, Key Lab Appl Superconduct, Beijing 100190, Peoples R China. |
| 中文摘要 | 122 type pnictide superconductors are of particular interest for high-field applications because of their large upper critical fields H-c2 (> 100 T) and low anisotropy gamma (< 2). Successful magnet applications require fabrication of polycrystalline superconducting wires that exhibit large critical current density J(c), which is limited by poor grain coupling and weak-link behavior at grain boundaries. Here, we report our recent achievement in the developing Sr0.6K0.4Fe2As2 tapes with transport J(c) up to 0.1 MA/cm(2) at 10 T and 4.2K. This value is by far the highest ever recorded for iron based superconducting wires and has surpassed the threshold for practical application. The synergy effects of enhanced grain connectivity, alleviation of the weak-link behavior at grain boundaries, and the strong intrinsic pinning characteristics led to the superior J(c) performance exhibited in our samples. This advanced J(c) result opens up the possibility for iron-pnictide superconducting wires to win the race in high-field magnet applications. (C) 2014 AIP Publishing LLC. |
| 资助信息 | National "973" Program [2011CBA00105]; National Natural Science Foundation of China [51025726, 51172230, 51202243, 51320105015]; Beijing Municipal Natural Science Foundation [2122056] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/58909]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, XP,Yao, C,Lin, H,et al. Realization of practical level current densities in Sr0.6K0.4Fe2As2 tape conductors for high-field applications[J]. APPLIED PHYSICS LETTERS,2014,104(20). |
| APA | Zhang, XP.,Yao, C.,Lin, H.,Cai, Y.,Chen, Z.,...&Watanabe, K.(2014).Realization of practical level current densities in Sr0.6K0.4Fe2As2 tape conductors for high-field applications.APPLIED PHYSICS LETTERS,104(20). |
| MLA | Zhang, XP,et al."Realization of practical level current densities in Sr0.6K0.4Fe2As2 tape conductors for high-field applications".APPLIED PHYSICS LETTERS 104.20(2014). |
入库方式： OAI收割
来源：物理研究所
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