Interface charge doping effects on superconductivity of single-unit-cell FeSe films on SrTiO3 substrates
文献类型：期刊论文
| 作者 | Zhang, WH ; Li, Z ; Li, FS ; Zhang, HM ; Peng, JP ; Tang, CJ ; Wang, QY ; He, K ; Chen, X ; Wang, LL ; Ma, XC ; Xue, QK |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:6 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Zhang, WH (reprint author), Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China. |
| 中文摘要 | We prepare single-unit-cell FeSe films on insulating SrTiO3 substrates by molecular beam epitaxy and investigate the evolution of their superconducting properties with annealing by in situ scanning tunneling microscopy and scanning tunneling spectroscopy and ex situ transport measurements. We find that through an annealing process, the superconductivity of 1-uc FeSe films on SrTiO3 substrates develops with the formation of stoichiometric FeSe films and is further enhanced by charge transfer from SrTiO3 substrates to FeSe films. Moreover, the superconductivity is independent of the bulk property of the SrTiO3 substrate, regardless of whether it is insulating or conductive. Our results reveal that the high-temperature superconductivity of 1-uc FeSe films on SrTiO3 substrates indeed occurs at the FeSe/SrTiO3 interface, where the electron doping at FeSe films plays an important role in this interfacial superconductivity. |
| 资助信息 | Ministry of Science and Technology; National Science Foundation of China |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59560]  |
| 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 | Zhang, WH,Li, Z,Li, FS,et al. Interface charge doping effects on superconductivity of single-unit-cell FeSe films on SrTiO3 substrates[J]. PHYSICAL REVIEW B,2014,89(6). |
| APA | Zhang, WH.,Li, Z.,Li, FS.,Zhang, HM.,Peng, JP.,...&Xue, QK.(2014).Interface charge doping effects on superconductivity of single-unit-cell FeSe films on SrTiO3 substrates.PHYSICAL REVIEW B,89(6). |
| MLA | Zhang, WH,et al."Interface charge doping effects on superconductivity of single-unit-cell FeSe films on SrTiO3 substrates".PHYSICAL REVIEW B 89.6(2014). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。