Vortex pinning properties in co-doped bafe2as2 thin films with a high critical current density over 2 ma cm?2 at 9 t
文献类型：期刊论文
| 作者 | Yuan,Pusheng1,2; Xu,Zhongtang1; Wang,Dongliang1; Zhang,Ming3; Li,Jianqi3; Ma,Yanwei1 |
| 刊名 | Superconductor science and technology
 |
| 出版日期 | 2016-11-30 |
| 卷号 | 30期号:2 |
| 关键词 | Iron-based superconductors Critical current density Co-doped bafe2as2 Film |
| ISSN号 | 0953-2048 |
| DOI | 10.1088/0953-2048/30/2/025001 |
| 英文摘要 | Abstract similar to other high-temperature superconductors, the pinning centers largely determine the critical current density (jc) in co-doped bafe2as2 (ba122:co). therefore, understanding the vortex pinning mechanism of high-jc ba122:co thin films is important for the applications of ba122:co. herein we report the pinning of the naturally grown defects in ba122:co thin films with a high critical current density. the transport jc of thin films is up to 2.6 ma cm?2 in 9 t at 4.2 k, which is the highest value in iron-based superconductors. microstructure investigations reveal a high density of ab-planar defects (stacking faults) and localized vertical defects present in the sample. the dew–hughes mode analyses prove that pinning centers by surface defects and by point defects are responsible for h//ab and h//c, respectively. therefore, the high jc in strong magnetic field for both h//ab and h//c are related to surface and point defects which act as the pinning centers in ba122:co films. |
| 语种 | 英语 |
| WOS记录号 | IOP:0953-2048-30-2-025001 |
| 出版者 | IOP Publishing |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373535 |
| 专题 | 物理研究所 |
| 作者单位 | 1.Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China 2.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Yuan,Pusheng,Xu,Zhongtang,Wang,Dongliang,et al. Vortex pinning properties in co-doped bafe2as2 thin films with a high critical current density over 2 ma cm?2 at 9 t[J]. Superconductor science and technology,2016,30(2). |
| APA | Yuan,Pusheng,Xu,Zhongtang,Wang,Dongliang,Zhang,Ming,Li,Jianqi,&Ma,Yanwei.(2016).Vortex pinning properties in co-doped bafe2as2 thin films with a high critical current density over 2 ma cm?2 at 9 t.Superconductor science and technology,30(2). |
| MLA | Yuan,Pusheng,et al."Vortex pinning properties in co-doped bafe2as2 thin films with a high critical current density over 2 ma cm?2 at 9 t".Superconductor science and technology 30.2(2016). |
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来源：物理研究所
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