Superconductivity in a single-layer alkali-doped FeSe: A weakly coupled two-leg ladder system
文献类型：期刊论文
| 作者 | Li, W ; Ding, H ; Zhang, PF ; Deng, P ; Chang, K ; He, K ; Ji, SH ; Wang, LL ; Ma, XC ; Wu, J ; Hu, JP ; Xue, QK ; Chen, X |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2013 |
| 卷号 | 88期号:14 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Li, W (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA. |
| 中文摘要 | We prepare single-layer potassium-doped iron selenide (110) film by molecular-beam expitaxy. Such a single-layer film can be viewed as a two-dimensional system composed of weakly coupled two-leg iron ladders. Scanning tunneling spectroscopy reveals that superconductivity is developed in this two-leg ladder system. The superconducting gap is similar to that of the multilayer films. However, the Fermi-surface topology in this quasi-one-dimensional system is remarkably different from that of the bulk materials. Our results suggest that superconducting pairing is very short ranged or takes place rather locally in iron chalcogenides. The superconductivity is most likely driven by electron-electron correlation effect and is insensitive to the change of Fermi surfaces. |
| 资助信息 | NSFC; National Basic Research Program of China |
| 语种 | 英语 |
| 公开日期 | 2014-01-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57512]  |
| 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 | Li, W,Ding, H,Zhang, PF,et al. Superconductivity in a single-layer alkali-doped FeSe: A weakly coupled two-leg ladder system[J]. PHYSICAL REVIEW B,2013,88(14). |
| APA | Li, W.,Ding, H.,Zhang, PF.,Deng, P.,Chang, K.,...&Chen, X.(2013).Superconductivity in a single-layer alkali-doped FeSe: A weakly coupled two-leg ladder system.PHYSICAL REVIEW B,88(14). |
| MLA | Li, W,et al."Superconductivity in a single-layer alkali-doped FeSe: A weakly coupled two-leg ladder system".PHYSICAL REVIEW B 88.14(2013). |
入库方式： OAI收割
来源：物理研究所
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