Competition between BCS superconductivity and ferromagnetic spin fluctuations in MgCNi3
文献类型：期刊论文
| 作者 | Shan, L ; Liu, ZY ; Ren, ZA ; Che, GC ; Wen, HH |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2005 |
| 卷号 | 71期号:14 |
| 关键词 | DENSITY-OF-STATES D-WAVE SUPERCONDUCTORS HEAT FIELD YBA2CU3O7-DELTA VORTEX 0-LESS-THAN-OR-EQUAL-TO-DELTA-LESS-THAN-OR-EQUAL-TO-0.2 DEPENDENCE METALS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Shan, L: Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The low temperature specific heat of the superconductor MgCNi3 and a nonsuperconductor MgC0.85Ni3 is investigated in detail. An additional contribution is observed from the data of MgCNi3 but absent in MgC0.85Ni3, which is demonstrated to be insensitive to the applied magnetic field even up to 12 T. A detailed discussion on its origin is then presented. By subtracting this additional contribution, the zero field specific heat of MgCNi3 can be well described by the BCS theory with the gap ratio (Delta/k(B)T(c)) determined by the previous tunneling measurements. The conventional s-wave pairing state is further proved by the magnetic field dependence of the specific heat at low temperatures and the behavior of the upper critical field. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34975]  |
| 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 | Shan, L,Liu, ZY,Ren, ZA,et al. Competition between BCS superconductivity and ferromagnetic spin fluctuations in MgCNi3[J]. PHYSICAL REVIEW B,2005,71(14). |
| APA | Shan, L,Liu, ZY,Ren, ZA,Che, GC,&Wen, HH.(2005).Competition between BCS superconductivity and ferromagnetic spin fluctuations in MgCNi3.PHYSICAL REVIEW B,71(14). |
| MLA | Shan, L,et al."Competition between BCS superconductivity and ferromagnetic spin fluctuations in MgCNi3".PHYSICAL REVIEW B 71.14(2005). |
入库方式： OAI收割
来源：物理研究所
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