Magnetic characterization of polycrystalline NdFeAsO0.88F0.12 oxypnictide superconductor
文献类型：期刊论文
| 作者 | Ding, Y ; Sun, Y ; Wang, XD ; Shi, ZX ; Ren, ZA ; Yang, J ; Lu, W |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2011 |
| 卷号 | 509期号:5页码:1424 |
| ISSN号 | 0925-8388 |
| 关键词 | T-C SUPERCONDUCTORS FLUX-PINNING FORCE TAPES SUSCEPTIBILITY TEMPERATURE BEHAVIOR SYSTEM ND |
| 通讯作者 | Shi, ZX: Southeast Univ, Dept Phys, Nanjing 211189, Peoples R China. |
| 中文摘要 | The superconducting properties of polycrystalline NdFeAsO0.88F0.12 oxypnictide were studied by both DC and AC magnetization measurements. The zero-field cooled (ZFC) magnetic susceptibility, chi(T), measured under the magnetic field of 0.5 T shows a dramatic decrease at about 11 K. The imaginary component of the first harmonics of the AC magnetic susceptibility, chi ''(T), increases with the increasing DC field H-dc below 11 K. These results indicate the onset of robust intergranular superconductivity at low temperatures. The magnetic hysteresis loops show an anomalous double central peak effect at low temperatures, with one peak at positive fields in decreasing positive external fields. This phenomenon suggests the granular character of this system. The paramagnetism of Nd3+ ions tilts the magnetic hysteresis loops and broadens the hysteresis width Delta M. After correction for the paramagnetism, the temperature and field dependence of the average magnetization critical current density km was obtained. The related mechanism was discussed. (C) 2010 Elsevier B.V. All rights reserved. |
| 资助信息 | Scientific Research Foundation of Graduate School of Southeast University [YBJJ0933]; Natural Science Foundation of China (NSFC) [10804127]; Cyanine-Project Foundation of Jiangsu Province of China [1107020060]; Foundation for Climax Talents Plan in Six-Big Fields of Jiangsu Province of China [1107020070] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41177]  |
| 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 | Ding, Y,Sun, Y,Wang, XD,et al. Magnetic characterization of polycrystalline NdFeAsO0.88F0.12 oxypnictide superconductor[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(5):1424. |
| APA | Ding, Y.,Sun, Y.,Wang, XD.,Shi, ZX.,Ren, ZA.,...&Lu, W.(2011).Magnetic characterization of polycrystalline NdFeAsO0.88F0.12 oxypnictide superconductor.JOURNAL OF ALLOYS AND COMPOUNDS,509(5),1424. |
| MLA | Ding, Y,et al."Magnetic characterization of polycrystalline NdFeAsO0.88F0.12 oxypnictide superconductor".JOURNAL OF ALLOYS AND COMPOUNDS 509.5(2011):1424. |
入库方式： OAI收割
来源：物理研究所
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