Correspondence between the electronic structure and phase separation in a K-doped FeSe system
文献类型：期刊论文
| 作者 | Zhao, JL ; Qian, HJ; Wu, R; Wang, HH; Zhang, N; Ibrahim, K; Wang, JO; Liu C(刘晨); Zhao JL(赵佳丽); Wang JO(王嘉鸥)
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| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
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| 出版日期 | 2017 |
| 卷号 | 29期号:39页码:395503 |
| 关键词 | phase separation electronic structure film growth |
| ISSN号 | 0953-8984 |
| DOI | 10.1088/1361-648X/aa8156 |
| 文献子类 | Article |
| 英文摘要 | Phase separated potassium intercalated FeSe thin films have been synthesized by pulsed laser deposition. The coexistence of FeSe phase and 245 phase was investigated both by x-ray photoemission spectroscopy (XPS) and x-ray diffraction. The volume ratio of these two phases is sensitive to temperatures and amount of extra potassium dosing. The XPS and ultraviolet photoelectron spectroscopy results indicated that these two phases shows the different hybridization strength between adjacent Fe layer and Se layer. We infer that the layered electronic structure is the necessary condition of superconductivity in potassium-doped FeSe system, and the phase separation is driven by competition between quasi-2D and 3D bonding mode within FeSe layer. Similar competition may also be able to interpret the phase seperation in KxFe(2-y)Se(2) bulk single crystal. |
| 电子版国际标准刊号 | 1361-648X |
| WOS关键词 | SUPERCONDUCTORS ; KXFE2-YSE2 |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000408473400002 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284830]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhao, JL,Qian, HJ,Wu, R,et al. Correspondence between the electronic structure and phase separation in a K-doped FeSe system[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2017,29(39):395503. |
| APA | Zhao, JL.,Qian, HJ.,Wu, R.,Wang, HH.,Zhang, N.,...&Liu, C.(2017).Correspondence between the electronic structure and phase separation in a K-doped FeSe system.JOURNAL OF PHYSICS-CONDENSED MATTER,29(39),395503. |
| MLA | Zhao, JL,et al."Correspondence between the electronic structure and phase separation in a K-doped FeSe system".JOURNAL OF PHYSICS-CONDENSED MATTER 29.39(2017):395503. |
入库方式： OAI收割
来源：高能物理研究所
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