Evolution from incoherent to coherent electronic states and its implications for superconductivity in FeTe1-xSex
文献类型：期刊论文
| 作者 | Ieki, E ; Nakayama, K ; Miyata, Y ; Sato, T ; Miao, H ; Xu, N ; Wang, XP ; Zhang, P ; Qian, T ; Richard, P ; Xu, ZJ ; Wen, JS ; Gu, GD ; Luo, HQ ; Wen, HH ; Ding, H ; Takahashi, T |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:14 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Ieki, E (reprint author), Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan. |
| 中文摘要 | We have performed systematic angle-resolved photoemission spectroscopy (ARPES) of iron-chalcogenide superconductor FeTe1-x Se-x (0 <= x <= 0.45) to elucidate the electronic states relevant to the superconductivity. While the Fermi-surface shape is nearly independent of x, we found that the ARPES spectral line shape shows prominent x dependence. A broad ARPES spectrum characterized by a small quasiparticle weight at x = 0, indicative of incoherent electronic states, becomes progressively sharper with increasing x, and a well-defined quasiparticle peak appears around x = 0.45 where bulk superconductivity is realized. The present result suggests the evolution from incoherent to coherent electronic states and its close relationship to the emergence of superconductivity. |
| 资助信息 | Japan Society for the Promotion of Science (JSPS); Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan; Chinese Academy of Sciences (CAS); National Science Foundation of China (NSFC); Ministry of Science and Technology (MOST) of China, KEK-PF [2009S2-005, 2012S2-001]; UVSOR [22-540] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59549]  |
| 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 | Ieki, E,Nakayama, K,Miyata, Y,et al. Evolution from incoherent to coherent electronic states and its implications for superconductivity in FeTe1-xSex[J]. PHYSICAL REVIEW B,2014,89(14). |
| APA | Ieki, E.,Nakayama, K.,Miyata, Y.,Sato, T.,Miao, H.,...&Takahashi, T.(2014).Evolution from incoherent to coherent electronic states and its implications for superconductivity in FeTe1-xSex.PHYSICAL REVIEW B,89(14). |
| MLA | Ieki, E,et al."Evolution from incoherent to coherent electronic states and its implications for superconductivity in FeTe1-xSex".PHYSICAL REVIEW B 89.14(2014). |
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来源：物理研究所
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