Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2-xNixAs2
文献类型：期刊论文
| 作者 | Lu, XY ; Park, JT ; Zhang, R ; Luo, HQ ; Nevidomskyy, AH ; Si, QM ; Dai, PC |
| 刊名 | SCIENCE
 |
| 出版日期 | 2014 |
| 卷号 | 345期号:6197页码:657 |
| ISSN号 | 0036-8075 |
| 通讯作者 | Dai, PC (reprint author), Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA. |
| 中文摘要 | Understanding the microscopic origins of electronic phases in high-transition temperature (high-T-c) superconductors is important for elucidating the mechanism of superconductivity. In the paramagnetic tetragonal phase of BaFe2-xTxAs2 (where T is Co or Ni) iron pnictides, an in-plane resistivity anisotropy has been observed. Here, we use inelastic neutron scattering to show that low-energy spin excitations in these materials change from fourfold symmetric to twofold symmetric at temperatures corresponding to the onset of the in-plane resistivity anisotropy. Because resistivity and spin excitation anisotropies both vanish near optimal superconductivity, we conclude that they are likely intimately connected. |
| 资助信息 | Ministry of Science and Technology of China [2012CB821400, 2011CBA00110]; National Natural Science Foundation of China; China Academy of Engineering Physics; U.S. NSF [DMR-1308603, DMR-1362219, DMR-1309531]; Robert A. Welch Foundation [C-1839, C-1818, C-1411]; Alexander von Humboldt Foundation; NSF [PHYS-1066293] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59657]  |
| 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 | Lu, XY,Park, JT,Zhang, R,et al. Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2-xNixAs2[J]. SCIENCE,2014,345(6197):657. |
| APA | Lu, XY.,Park, JT.,Zhang, R.,Luo, HQ.,Nevidomskyy, AH.,...&Dai, PC.(2014).Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2-xNixAs2.SCIENCE,345(6197),657. |
| MLA | Lu, XY,et al."Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2-xNixAs2".SCIENCE 345.6197(2014):657. |
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来源：物理研究所
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