The variation of pinning efficiency in YBCO films containing columnar defects
文献类型：期刊论文
| 作者 | Liu, Li1,2; Liu, Jie1,2 ; Zhai, PengFei1,2; Zhang, ShengXia1; Zeng, Jian1,2; Hu, PeiPei1; Xu, LiJun1; Li, ZongZhen1
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| 刊名 | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
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| 出版日期 | 2022-01-15 |
| 卷号 | 592页码:6 |
| 关键词 | Heavy ions irradiation Columnar defects Pinning efficiency YBCO films |
| ISSN号 | 0921-4534 |
| DOI | 10.1016/j.physc.2021.1354000 |
| 通讯作者 | Liu, Jie(j.liu@impcas.ac.cn) |
| 英文摘要 | YBa2Cu3O7-x (YBCO) films were irradiated by ions with different electronic energy loss Se (17.7 keV/nm Kr ions, 35.8 keV/nm Ta ions and 43.7 keV/nm Bi ions) at identical fluence of 5 x 1010 ions/cm2. Existences of columnar defects, i.e. latent tracks, in Ta ions and Bi ions irradiated YBCO films have been confirmed by TEM (transmission electron microscope) analysis, respectively. Variations of pinning efficiency eta, which can be represented as ratio between pinning force density Fp,i of irradiated sample and Fp,p of pristine sample at the same temperature, with temperature and magnetic field in YBCO films irradiated with different ion species were systematically studied. eta in all the irradiated samples show monotonically increasing trend with increasing temperature. Nevertheless, as the number of vortices, i.e. external magnetic field B, increases, eta in YBCO film containing latent tracks gradually reaches its maximum value at low magnetic field and then decreases slowly, totally different from YBCO film containing no latent tracks. This phenomenon may provide a fresh idea to judging the existence of columnar defects in YBCO films. Peak position Bp is far below matching field (B phi approximate to 1.0 T) and peak value increased with increasing temperature. Moreover, sample containing larger-size columnar defects (which can be produced by ions with higher Se) exhibits higher but narrower peak in eta-B curve, which is also important for future application. |
| WOS关键词 | VORTEX ; SUPERCONDUCTOR ; REDUCTION ; VORTICES ; CRYSTALS ; ARRAYS ; FIELDS |
| 资助项目 | National Natural Science Foundation of China[12035019] ; National Natural Science Foundation of China[11690041] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000736965000005 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/142433]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu, Jie |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci UCAS, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Li,Liu, Jie,Zhai, PengFei,et al. The variation of pinning efficiency in YBCO films containing columnar defects[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2022,592:6. |
| APA | Liu, Li.,Liu, Jie.,Zhai, PengFei.,Zhang, ShengXia.,Zeng, Jian.,...&Li, ZongZhen.(2022).The variation of pinning efficiency in YBCO films containing columnar defects.PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,592,6. |
| MLA | Liu, Li,et al."The variation of pinning efficiency in YBCO films containing columnar defects".PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 592(2022):6. |
入库方式： OAI收割
来源：近代物理研究所
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