The Influence of BaCeO3 Doping on the Oxygen Distribution, Inhomogeneity and Superconducting Properties of YBa2Cu3O7-delta+0.1mol Y2O3 Superconductors
文献类型：期刊论文
| 作者 | Zhang, Mingfa1; Sun, Aimin1,2,3; Ma, Shuyi1,2,3; Zhang, Hongtao1; Dong, Yan1; Xu, Bin1 |
| 刊名 | JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
 |
| 出版日期 | 2016-01 |
| 卷号 | 29页码:107-113 |
| 关键词 | YBCO+Y2O3 superconductor BaCeO3 addition Microstructure Elemental distribution Superconductivity |
| ISSN号 | 1557-1939 |
| DOI | 10.1007/s10948-015-3253-9 |
| 英文摘要 | A synthesis of polycrystalline YBa2Cu3O7-delta (Y123, YBCO) + 0.1mol Y2O3+ x wt % BaCeO3(x=0.0,0.5,1.0,2.0, and 5.0) superconductors has been done in air via a standard solidstate reaction technique. The effects of BaCeO3 addition on the microstructure, the elemental distribution, and the superconducting transition temperature were systematically investigated through X-ray Diffraction (XRD), (EDS) and (EELS), and Scanning Electron Microscope (SEM) technique. It was found that when Y2O3 was added to the YBCO, the samples have a little of Y-211 formations and look like spherical or ellipsoidal shape. According to SEM, XRD, EDS, and resistivity measurements, we observed that the BaCeO3 doping concentration reached to 5 %, the morphology of those samples exhibits a granular structure and has a big gap among particles and becomes inhomogeneous, but Y and O distribution basically remains unchanged. When the BaCeO3 doping concentration > 1 %, the normal state resistivity of the samples has changed from metallic to semi-conducting behavior as the transition temperature of the samples decreases and transition width broadens. These results can be interpreted by the decrease of oxygen content, the variation of defects, intra-grain disorders and weak-link. We can draw a conclusion from this experiment that different performance was optimum when the doping amount of BaCeO3 was 1.0 %. |
| WOS关键词 | INFILTRATION ; CRYSTAL |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000367261600015 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.186/handle/113462/56742]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Zhang, Mingfa |
| 作者单位 | 1.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China 2.Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China 3.IMP CAS, Lanzhou 730070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Mingfa,Sun, Aimin,Ma, Shuyi,et al. The Influence of BaCeO3 Doping on the Oxygen Distribution, Inhomogeneity and Superconducting Properties of YBa2Cu3O7-delta+0.1mol Y2O3 Superconductors[J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,2016,29:107-113. |
| APA | Zhang, Mingfa,Sun, Aimin,Ma, Shuyi,Zhang, Hongtao,Dong, Yan,&Xu, Bin.(2016).The Influence of BaCeO3 Doping on the Oxygen Distribution, Inhomogeneity and Superconducting Properties of YBa2Cu3O7-delta+0.1mol Y2O3 Superconductors.JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,29,107-113. |
| MLA | Zhang, Mingfa,et al."The Influence of BaCeO3 Doping on the Oxygen Distribution, Inhomogeneity and Superconducting Properties of YBa2Cu3O7-delta+0.1mol Y2O3 Superconductors".JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 29(2016):107-113. |
入库方式： OAI收割
来源：近代物理研究所
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