CuNNi3: a new nitride superconductor with antiperovskite structure
文献类型：期刊论文
| 作者 | He, B ; Dong, C ; Yang, LH ; Chen, XC ; Ge, LH ; Mu, LB ; Shi, YG |
| 刊名 | SUPERCONDUCTOR SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2013 |
| 卷号 | 26期号:12 |
| ISSN号 | 0953-2048 |
| 通讯作者 | He, B (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We have successfully synthesized a new Ni-based antiperovskite nitride, CuNNi3, which exhibits superconductivity with a transition temperature T-c of 3.2 K. This compound is the second nitride superconductor in the Ni-based antiperovskites. We report the synthesis and physical properties of CuNNi3, characterized via x-ray diffraction, magnetization, resistivity, and heat capacity measurements. The temperature dependence of the specific heat is consistent with an isotropic s-wave gap (Delta(0) = 0.42 meV). The estimated electron-phonon coupling strength (lambda(ep) = 0.53) suggests that the superconductivity in CuNNi3 is induced by electron-phonon coupling, and the gap ratio (2 Delta(0)/k(B)T(c)) of 3.05 indicates that it is a weak coupling superconductor. Furthermore, the relatively high Ginzburg-Landau parameter (kappa =24.6) signifies that CuNNi3 is a type II superconductor. |
| 资助信息 | National Natural Science Foundation of China [20871119]; National Basic Research Program of China (973 Program) [2011CBA00100, 2011CB808202]; Natural Science Foundation of Sichuan Education Department [132ZA0234] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/56861]  |
| 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 | He, B,Dong, C,Yang, LH,et al. CuNNi3: a new nitride superconductor with antiperovskite structure[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2013,26(12). |
| APA | He, B.,Dong, C.,Yang, LH.,Chen, XC.,Ge, LH.,...&Shi, YG.(2013).CuNNi3: a new nitride superconductor with antiperovskite structure.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,26(12). |
| MLA | He, B,et al."CuNNi3: a new nitride superconductor with antiperovskite structure".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 26.12(2013). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。