Na-23 and As-75 NMR study of antiferromagnetism and spin fluctuations in NaFeAs single crystals
文献类型：期刊论文
| 作者 | Ma, L ; Chen, GF ; Yao, DX ; Zhang, J ; Zhang, S ; Xia, TL ; Yu, WQ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2011 |
| 卷号 | 83期号:13 |
| 关键词 | SUPERCONDUCTIVITY |
| ISSN号 | 1098-0121 |
| 通讯作者 | Ma, L (reprint author), Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China. |
| 中文摘要 | We report the Na-23 and As-75 nuclear magnetic resonance (NMR) studies on NaFeAs single crystals. The structure transition temperature T-S (55 K) and the spin density wave (SDW) transition temperature T-SDW (40.5 K) are determined by the NMRline splits. The spin-lattice relaxation rates indicate that the spin fluctuations are strongly enhanced just below T-S and drive a second order SDW transition. A fluctuating feature of the SDW ordering is also seen below the T-SDW. We further performed high-pressure NMR studies on NaFeAs, and found that the T-SDW increases by similar to 7 K and the magnetic moment increases by similar to 30% under 2.5 GPa pressure. |
| 收录类别 | SCI |
| 资助信息 | NSFC [11074304, 10974254, 11074310]; National Basic Research Program of China [2010CB923000, 2011CBA00100] |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57813]  |
| 专题 | 物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文 |
| 推荐引用方式 GB/T 7714 | Ma, L,Chen, GF,Yao, DX,et al. Na-23 and As-75 NMR study of antiferromagnetism and spin fluctuations in NaFeAs single crystals[J]. PHYSICAL REVIEW B,2011,83(13). |
| APA | Ma, L.,Chen, GF.,Yao, DX.,Zhang, J.,Zhang, S.,...&Yu, WQ.(2011).Na-23 and As-75 NMR study of antiferromagnetism and spin fluctuations in NaFeAs single crystals.PHYSICAL REVIEW B,83(13). |
| MLA | Ma, L,et al."Na-23 and As-75 NMR study of antiferromagnetism and spin fluctuations in NaFeAs single crystals".PHYSICAL REVIEW B 83.13(2011). |
入库方式： OAI收割
来源：物理研究所
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