The effect of columnar defects on the pinning properties of NdFeAsO0.85 conglomerate particles
文献类型：期刊论文
| 作者 | Moore, JD ; Cohen, LF ; Yeshurun, Y ; Caplin, AD ; Morrison, K ; Yates, KA ; McGilvery, CM ; Perkins, JM ; McComb, DW ; Trautmann, C ; Ren, ZA ; Yang, J ; Lu, W ; Dong, XL ; Zhao, ZX |
| 刊名 | SUPERCONDUCTOR SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2009 |
| 卷号 | 22期号:12 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTORS CU-O CRYSTALS SINGLE-CRYSTALS MAGNETIC-RELAXATION ANISOTROPIES VORTICES |
| ISSN号 | 0953-2048 |
| 通讯作者 | Moore, JD (reprint author), Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Prince Consort Rd, London SW7 2AZ, England. |
| 中文摘要 | An oxypnictide superconductor NdFeAsO0.85 sample with transition temperature of 46 K was irradiated with 2 GeV Ta ions at a fluence of 5 x 10(10) ions cm(-2). High resolution transmission electron microscopy study revealed that the irradiation produced columnar-like defects. The effect of these defects on the irreversible magnetization in polycrystalline randomly oriented fragments was studied as a function of field angle and field sweep rate. We find that the critical current density is moderately enhanced at fields below the matching field (similar to 1 T). The pinning enhancement is anisotropic and maximum along the defect direction at 35 K, but becomes more isotropic as the temperature is decreased. The creep rate is suppressed at 35 K and at fields below the matching field, indicating that the columnar defects are efficient pinning sites under these H and T conditions. |
| 收录类别 | SCI |
| 资助信息 | Engineering Physical Science Research Council [EP/E016243/1]; The Israel Science Foundation (ISF) [499/07] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45018]  |
| 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 | Moore, JD,Cohen, LF,Yeshurun, Y,et al. The effect of columnar defects on the pinning properties of NdFeAsO0.85 conglomerate particles[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2009,22(12). |
| APA | Moore, JD.,Cohen, LF.,Yeshurun, Y.,Caplin, AD.,Morrison, K.,...&Zhao, ZX.(2009).The effect of columnar defects on the pinning properties of NdFeAsO0.85 conglomerate particles.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,22(12). |
| MLA | Moore, JD,et al."The effect of columnar defects on the pinning properties of NdFeAsO0.85 conglomerate particles".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 22.12(2009). |
入库方式： OAI收割
来源：物理研究所
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