Atomic and electronic structures of single-layer FeSe on SrTiO3(001): The role of oxygen deficiency
文献类型：期刊论文
| 作者 | Bang, J ; Li, Z ; Sun, YY ; Samanta, A ; Zhang, YY ; Zhang, WH ; Wang, LL ; Chen, X ; Ma, XC ; Xue, QK ; Zhang, SB |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2013 |
| 卷号 | 87期号:22 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Bang, J (reprint author), Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA. |
| 中文摘要 | Using first-principles calculation, we propose an interface structure for single triple-layer FeSe on the SrTiO3(001) surface, a high-T-c superconductor found recently. The key component of this structure is the oxygen deficiency on the top layer of the SrTiO3 substrate, as a result of Se etching used in preparing the high-T-c samples. The O vacancies strongly bind the FeSe triple layer to the substrate giving rise to a (2 x 1) reconstruction, as observed by scanning tunneling microscopy. The enhanced binding correlates to the significant increase of T-c observed in experiment. The O vacancies also serve as the source of electron doping, which modifies the Fermi surface of the first FeSe layer by filling the hole pocket near the center of the surface Brillouin zone, as suggested from angle-resolved photoemission spectroscopy measurement. |
| 资助信息 | US Department of Energy (DOE) [DE-SC0002623]; National Science Foundation [DMR-1104994]; National Energy Research Scientific Computing Center under DOE [DE-AC02-05CH11231] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/56790]  |
| 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 | Bang, J,Li, Z,Sun, YY,et al. Atomic and electronic structures of single-layer FeSe on SrTiO3(001): The role of oxygen deficiency[J]. PHYSICAL REVIEW B,2013,87(22). |
| APA | Bang, J.,Li, Z.,Sun, YY.,Samanta, A.,Zhang, YY.,...&Zhang, SB.(2013).Atomic and electronic structures of single-layer FeSe on SrTiO3(001): The role of oxygen deficiency.PHYSICAL REVIEW B,87(22). |
| MLA | Bang, J,et al."Atomic and electronic structures of single-layer FeSe on SrTiO3(001): The role of oxygen deficiency".PHYSICAL REVIEW B 87.22(2013). |
入库方式： OAI收割
来源：物理研究所
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