Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides
文献类型：期刊论文
| 作者 | Blomberg, EC ; Tanatar, MA ; Fernandes, RM ; Mazin, II ; Shen, B ; Wen, HH ; Johannes, MD ; Schmalian, J ; Prozorov, R |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2013 |
| 卷号 | 4 |
| ISSN号 | 2041-1723 |
| 通讯作者 | Prozorov, R (reprint author), Ames Lab, Ames, IA 50011 USA. |
| 中文摘要 | Unconventional superconductivity usually originates from several strongly coupled degrees of freedom, such as magnetic, charge and elastic. A highly anisotropic electronic phase, not driven by lattice degrees of freedom, has been proposed in some of these superconductors, from cuprates to iron-based compounds. In the iron pnictide BaFe2As2, this nematic phase arises in the paramagnetic phase and is present for wide doping and temperature ranges. Here we probe the in-plane electronic anisotropy of electron-and hole-doped BaFe2As2 compounds. Unlike other materials, the resistivity anisotropy behaves very differently for electron- and hole-type dopants and even changes sign on the hole-doped side. This behaviour is explained by Fermi surface reconstruction in the magnetic phase and spin-fluctuation scattering in the paramagnetic phase. This unique transport anisotropy unveils the primary role played by magnetic scattering, demonstrating the close connection between magnetism, nematicity and unconventional superconductivity. |
| 资助信息 | US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]; NSF of China; Ministry of Science and Technology of China [2011CBA00102, 2012CB821403]; NSF Partnerships for International Research and Education (PIRE) programme [OISE-0968226] |
| 语种 | 英语 |
| 公开日期 | 2014-01-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57440]  |
| 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 | Blomberg, EC,Tanatar, MA,Fernandes, RM,et al. Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides[J]. NATURE COMMUNICATIONS,2013,4. |
| APA | Blomberg, EC.,Tanatar, MA.,Fernandes, RM.,Mazin, II.,Shen, B.,...&Prozorov, R.(2013).Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides.NATURE COMMUNICATIONS,4. |
| MLA | Blomberg, EC,et al."Sign-reversal of the in-plane resistivity anisotropy in hole-doped iron pnictides".NATURE COMMUNICATIONS 4(2013). |
入库方式： OAI收割
来源：物理研究所
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