Enhancement of critical current density of (pb,sn)-doped bi-2212 superconductors at high temperature
文献类型：期刊论文
| 作者 | Li, Y; Kaviraj, S; Berenov, A; Perkins, GK; Driscoll, J; Caplin, AD; Cao, GH; Ma, QZ; Wang, B; Wei, L |
| 刊名 | Physica c
 |
| 出版日期 | 2001-06-01 |
| 卷号 | 355期号:1-2页码:51-58 |
| 关键词 | Pinning centre Pb Sn-doped bi-2212 superconductor |
| ISSN号 | 0921-4534 |
| 通讯作者 | Li, y() |
| 英文摘要 | The magnetic properties of ceramic samples of bi2-2x(pbsn)(x)sr2cacu2oy (x = 0, 0.1, 0.2, 0.3 and 0.4) superconductors have been investigated using a vibrating sample magnetometer from 20 to 50 k and up to 8 t. phase analysis shows that most of the (pb,sn) dopant enters the bi-2212 lattice and occupies pi sites. the current-carrying scale-length analysis has been determined from the reverse leg of the magnetization hysteresis loops and compared to the actual dimensions of the sample. magnetization hysteresis loops of the (pbsn)-doped sample exhibit strong pinning behaviour in the higher temperature range. the effect of (pb,sn) doping on intragranular critical current j(c) was found to be enhanced by one order of magnitude at 50 k. we discuss the experimental results within a model of (pbsn) duster pinning in blocking layers. doping by (pbsn) clusters into the bi-o layers provides effective pinning centres, as well as a large reduction of the resistivity anisotropy. (c) 2001 published by elsevier science b.v. |
| WOS关键词 | SN-119 MOSSBAUER-SPECTROSCOPY ; SINGLE-CRYSTALS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000169287100007 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176326 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Li, Y |
| 作者单位 | 1.Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Ctr High Temp Superconduct, London SW7 2BZ, England 2.Univ Sci & Technol Beijing, Dept Mat Phys, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Lab Nucl Anal Tech, Beijing 100080, Peoples R China 4.Chinese Acad Sci, Natl Lab Superconduct, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Y,Kaviraj, S,Berenov, A,et al. Enhancement of critical current density of (pb,sn)-doped bi-2212 superconductors at high temperature[J]. Physica c,2001,355(1-2):51-58. |
| APA | Li, Y.,Kaviraj, S.,Berenov, A.,Perkins, GK.,Driscoll, J.,...&Zhao, ZX.(2001).Enhancement of critical current density of (pb,sn)-doped bi-2212 superconductors at high temperature.Physica c,355(1-2),51-58. |
| MLA | Li, Y,et al."Enhancement of critical current density of (pb,sn)-doped bi-2212 superconductors at high temperature".Physica c 355.1-2(2001):51-58. |
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