Molecular beam epitaxy of single unit- cell FeSe superconducting films on SrTiO3 (001)
文献类型：期刊论文
| 作者 | Wang, M ; Ou, YB ; Li, FS ; Zhang, WH ; Tang, CJ ; Wang, LL ; Xue, QK ; Ma, XC |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2014 |
| 卷号 | 63期号:2 |
| 关键词 | SrTiO3(001) single unit-cell FeSe films high temperature superconductivity molecular beam epitaxy |
| ISSN号 | 1000-3290 |
| 通讯作者 | Xue, QK (reprint author), Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China. |
| 中文摘要 | Based on our previous work, we have systematically investigated the molecular beam epitaxy growth of single unit-cell FeSe films on SrTiO3(001) substrates and studied the surface morphology by scanning tunneling microscopy. We found that there are three key steps to obtain large-scale uniform one unit-cell superconducting FeSe films. First, the STO(001) substrates should be treated by HCl etching and thermal annealing under oxygen flux so that a specific TiO2- terminated STO(001) surface with well-defined step-terrace structure could be obtained. Second, the Fe and Se fluxes and substrate temperature have to be controlled delicately. At last, post-growth annealing is also critical, which can remove extra Se adatoms, and more importantly facilitate the necessary electron transfer for superconductivity transition. |
| 资助信息 | National Natural Science Foundation of China [11374336, 91121004] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/58815]  |
| 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 | Wang, M,Ou, YB,Li, FS,et al. Molecular beam epitaxy of single unit- cell FeSe superconducting films on SrTiO3 (001)[J]. ACTA PHYSICA SINICA,2014,63(2). |
| APA | Wang, M.,Ou, YB.,Li, FS.,Zhang, WH.,Tang, CJ.,...&Ma, XC.(2014).Molecular beam epitaxy of single unit- cell FeSe superconducting films on SrTiO3 (001).ACTA PHYSICA SINICA,63(2). |
| MLA | Wang, M,et al."Molecular beam epitaxy of single unit- cell FeSe superconducting films on SrTiO3 (001)".ACTA PHYSICA SINICA 63.2(2014). |
入库方式： OAI收割
来源：物理研究所
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