Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba2Ti2Fe2As4O
文献类型：期刊论文
| 作者 | Rong, LY; Shi, X; Richard, P; Sun, YL; Cao, GH; Zhang, XZ; Ma, JZ; Shi, M; Huang, YB; Qian, T |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 35期号:5页码:- |
| 关键词 | Electron Liquid Density-wave Fese Films Thin-films Na(2)Ti(2)Pn(2)o Oxides Pn Sb |
| ISSN号 | 0256-307X |
| DOI | 10.1088/0256-307X/35/5/057401 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The electronic structure of iron-pnictide compound superconductor Ba2Ti2Fe2As4O, which has metallic intermediate Ti2O layers, is studied using angle-resolved photoemission spectroscopy. The Ti-related bands show a 'peak-dip-hump' line shape with two branches of dispersion associated with the polaronic states at temperatures below around 120 K. This change in the spectra occurs along with the resistivity anomaly that was not clearly understood in a previous study. Moreover, an energy gap induced by the superconducting proximity effect opens in the polaronic bands at temperatures below T-c (similar to 21 K). Our study provides the spectroscopic evidence that superconductivity coexists with polarons in the same bands near the Fermi level, which provides a suitable platform to study interactions between charge, lattice and spin freedoms in a correlated system. |
| 语种 | 英语 |
| WOS记录号 | WOS:000432916300027 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/28942]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Rong, LY 2.Shi, X 3.Richard, P 4.Sun, YL 5.Cao, GH 6.Zhang, XZ 7.Ma, JZ 8.Shi, M 9.Huang, YB 10.Qian, T |
| 推荐引用方式 GB/T 7714 | Rong, LY,Shi, X,Richard, P,et al. Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba2Ti2Fe2As4O[J]. CHINESE PHYSICS LETTERS,2018,35(5):-. |
| APA | Rong, LY.,Shi, X.,Richard, P.,Sun, YL.,Cao, GH.,...&Tai, RZ.(2018).Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba2Ti2Fe2As4O.CHINESE PHYSICS LETTERS,35(5),-. |
| MLA | Rong, LY,et al."Coexistence of Polaronic States and Superconductivity in Iron-Pnictide Compound Ba2Ti2Fe2As4O".CHINESE PHYSICS LETTERS 35.5(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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。