Superconductivity in Mg-doped layered intermetallic compound NbB2
文献类型：期刊论文
| 作者 | Liu, GT ; Jin, H ; Li, Z ; Geng, HX ; Che, GC ; Jin, D ; Sun, LF ; Xie, SS ; Luo, JL |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2008 |
| 卷号 | 25期号:2页码:687 |
| ISSN号 | 0256-307X |
| 中文摘要 | We have performed low temperature resistivity p(T) and specific heat C(T) measurements on a superconducting polycrystalline Nb0.75Mg0.25B2 sample. The results indicate that the superconducting transition temperature is similar to 4.6 K. The zero temperature upper critical held determined from the resistivity and specific heat is 3123 Oe. The electronic coefficient of specific heat gamma(n) = 4.51 mJ mol(-1) K-2 and the Debye temperature Theta(D) = 419 K are obtained by fitting the zero-field specific heat data in the normal state. At low temperatures, the electronic specific heat in the superconducting state follows C-es/gamma T-n(c) = 2.84 exp (-1.21T(c)/T). This indicates that the superconducting pairing in Nb0.75Mg0.25B2 has s-wave symmetry. |
| 收录类别 | SCI |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/54050]  |
| 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 | Liu, GT,Jin, H,Li, Z,et al. Superconductivity in Mg-doped layered intermetallic compound NbB2[J]. CHINESE PHYSICS LETTERS,2008,25(2):687. |
| APA | Liu, GT.,Jin, H.,Li, Z.,Geng, HX.,Che, GC.,...&Luo, JL.(2008).Superconductivity in Mg-doped layered intermetallic compound NbB2.CHINESE PHYSICS LETTERS,25(2),687. |
| MLA | Liu, GT,et al."Superconductivity in Mg-doped layered intermetallic compound NbB2".CHINESE PHYSICS LETTERS 25.2(2008):687. |
入库方式： OAI收割
来源：物理研究所
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