Specific heat of optimally doped Ba(Fe1-xTMx)(2)As-2 (TM = Co and Ni) single crystals at low temperatures: A multiband fitting
文献类型：期刊论文
| 作者 | Zeng, B ; Shen, B ; Luo, HQ ; Mu, G ; Cheng, P ; Yang, H ; Shan, L ; Ren, C ; Wen, HH |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2012 |
| 卷号 | 85期号:22 |
| 关键词 | LAYERED SUPERCONDUCTOR VORTEX STATES GAPS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Zeng, B (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | Low temperature specific heat has been measured in optimally doped and highly overdoped nonsuperconducting Ba(Fe1-xTMx)(2)As-2 (TM = Co and Ni) single crystals. By using the data of the overdoped samples, we successfully removed the phonon contribution of the optimally doped ones, and derived the electronic specific heat coefficient gamma(e). Remarkably, we found a continuing temperature dependent gamma(e)(T) which follows the quadratic relation gamma(e) = gamma(0) + alpha T-2 in the low temperature limit. Together with the very small residual term gamma(0), linear magnetic field dependence of gamma(e), it is concluded that there are either small segments of nodal lines, or pointlike nodes in these samples. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China; Ministry of Science and Technology of China [2006CB601000, 2006CB921107, 2006CB921802]; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52824]  |
| 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 | Zeng, B,Shen, B,Luo, HQ,et al. Specific heat of optimally doped Ba(Fe1-xTMx)(2)As-2 (TM = Co and Ni) single crystals at low temperatures: A multiband fitting[J]. PHYSICAL REVIEW B,2012,85(22). |
| APA | Zeng, B.,Shen, B.,Luo, HQ.,Mu, G.,Cheng, P.,...&Wen, HH.(2012).Specific heat of optimally doped Ba(Fe1-xTMx)(2)As-2 (TM = Co and Ni) single crystals at low temperatures: A multiband fitting.PHYSICAL REVIEW B,85(22). |
| MLA | Zeng, B,et al."Specific heat of optimally doped Ba(Fe1-xTMx)(2)As-2 (TM = Co and Ni) single crystals at low temperatures: A multiband fitting".PHYSICAL REVIEW B 85.22(2012). |
入库方式： OAI收割
来源：物理研究所
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