Superconductivity in (La1-xCex)(O0.9F0.1)FeAs and (La1-xPbx)OFeAs
文献类型：期刊论文
| 作者 | Che, RC ; Wang, L ; Chen, Z ; Ma, C ; Liang, CY ; Lu, JB ; Shi, HL ; Yang, HX ; Li, JQ |
| 刊名 | EPL
 |
| 出版日期 | 2008 |
| 卷号 | 83期号:6 |
| 关键词 | 43 K OXIDES |
| ISSN号 | 0295-5075 |
| 通讯作者 | Che, RC (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | Here we report the synthesis and superconductivity of (La1-xCex)(O0.9F0.1) FeAs and (La1-xPbx) OFeAs, which were prepared via partially substituting the trivalent La with either Ce in LaO0.9F0.1FeAs or Pb in LaOFeAs, respectively. Influence of the doping level x on the superconducting transition temperatures (T-c) is investigated in correlation with the dopant fraction values in these two sets of superconductors. The accurate existence of the doped Ce or Pb cations inside the typical samples is confirmed by means of electron energy loss spectroscopy (EELS) and energy dispersive X-ray spectroscopy (EDX) measurements. Structural analysis reveals that the increase of Ce content in the samples leads to a systematic shrinkage of the crystal lattice parameters. The observation of superconductivity in (La1-xPbx) OFeAs without F doping indicates a new method for the introduction of charge carriers in this system. Copyright (c) EPLA, 2008 |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China; 973 projects of the Ministry of Science and Technology of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/54036]  |
| 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 | Che, RC,Wang, L,Chen, Z,et al. Superconductivity in (La1-xCex)(O0.9F0.1)FeAs and (La1-xPbx)OFeAs[J]. EPL,2008,83(6). |
| APA | Che, RC.,Wang, L.,Chen, Z.,Ma, C.,Liang, CY.,...&Li, JQ.(2008).Superconductivity in (La1-xCex)(O0.9F0.1)FeAs and (La1-xPbx)OFeAs.EPL,83(6). |
| MLA | Che, RC,et al."Superconductivity in (La1-xCex)(O0.9F0.1)FeAs and (La1-xPbx)OFeAs".EPL 83.6(2008). |
入库方式： OAI收割
来源：物理研究所
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