Transport properties and anisotropy of Rb1-xFe2-ySe2 single crystals
文献类型：期刊论文
| 作者 | Li, CH ; Shen, B ; Han, F ; Zhu, XY ; Wen, HH |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 83期号:18 |
| 关键词 | SUPERCONDUCTIVITY LIFEAS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Li, CH (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | Single crystals of Rb1-xFe2-ySe2 are successfully synthesized with superconducting transition temperatures T-c approximate to 31 - 32.5 K. A clear humplike anomaly of resistivity was observed in the normal state in the temperature region T-an of 150 K-186 K, as found in a similar system, KxFe2-ySe2. It is found that the Meissner screening volume and the superconducting transition temperatures are higher for the sample with higher T-an, indicating that the hump of resistivity is strongly related to the superconductivity. The upper critical field has been determined with the magnetic field along the ab plane and c axis for two typical samples with different T-an, yielding an anisotropy of Gamma approximate to 3.5 when T-an = 150 K, while Gamma approximate to 4.8 when T-an = 186 K. The angle-dependent resistivity measured below T-c allow a perfect scaling feature based on the anisotropic Ginzburg-Landau theory, leading to consistent values of the anisotropy. Comparing with the anisotropy determined for Ba0.6K0.4Fe2As2 and Ba(Fe0.92Co0.08)(2)As-2 using the same method, we find that the present sample is more anisotropic and the Fermi surfaces with stronger two-dimensional characters are expected. |
| 收录类别 | SCI |
| 资助信息 | Ministry of Science and Technology of China [2011CBA00102]; Natural Science Foundation of China [51002180]; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46109]  |
| 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 | Li, CH,Shen, B,Han, F,et al. Transport properties and anisotropy of Rb1-xFe2-ySe2 single crystals[J]. PHYSICAL REVIEW B,2011,83(18). |
| APA | Li, CH,Shen, B,Han, F,Zhu, XY,&Wen, HH.(2011).Transport properties and anisotropy of Rb1-xFe2-ySe2 single crystals.PHYSICAL REVIEW B,83(18). |
| MLA | Li, CH,et al."Transport properties and anisotropy of Rb1-xFe2-ySe2 single crystals".PHYSICAL REVIEW B 83.18(2011). |
入库方式： OAI收割
来源：物理研究所
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