Band Structure and Fermi Surface of an Extremely Overdoped Iron-Based Superconductor KFe2As2
文献类型：期刊论文
| 作者 | Sato, T ; Nakayama, K ; Sekiba, Y ; Richard, P ; Xu, YM ; Souma, S ; Takahashi, T ; Chen, GF ; Luo, JL ; Wang, NL ; Ding, H |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2009 |
| 卷号 | 103期号:4 |
| 关键词 | RESOLVED PHOTOEMISSION-SPECTROSCOPY ELECTRONIC-STRUCTURE BA0.6K0.4FE2AS2 LAO1-XFXFEAS ORDER GAPS |
| ISSN号 | 0031-9007 |
| 通讯作者 | Sato, T: Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan. |
| 中文摘要 | We have performed high-resolution angle-resolved photoemission spectroscopy on heavily overdoped KFe2As2 (transition temperature T-c = 3 K). We observed several renormalized bands near the Fermi level with a renormalization factor of 2-4. While the Fermi surface around the Brillouin-zone center is qualitatively similar to that of optimally doped Ba1-xKxFe2As2 (x = 0.4; T-c = 37 K), the Fermi surface topology around the zone corner (M point) is markedly different: the two electron Fermi surface pockets are completely absent due to an excess of hole doping. This result indicates that the electronic states around the M point play an important role in the high-T-c superconductivity of Ba1-xKxFe2As2 and suggests that the interband scattering via the antiferromagnetic wave vector essentially controls the Tc value in the overdoped region. |
| 收录类别 | SCI |
| 资助信息 | JSPS; TRIP-JST; CREST-JST; MEXT of Japan; Chinese Academy of Sciences; NSF; Ministry of Science and Technology of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34130]  |
| 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 | Sato, T,Nakayama, K,Sekiba, Y,et al. Band Structure and Fermi Surface of an Extremely Overdoped Iron-Based Superconductor KFe2As2[J]. PHYSICAL REVIEW LETTERS,2009,103(4). |
| APA | Sato, T.,Nakayama, K.,Sekiba, Y.,Richard, P.,Xu, YM.,...&Ding, H.(2009).Band Structure and Fermi Surface of an Extremely Overdoped Iron-Based Superconductor KFe2As2.PHYSICAL REVIEW LETTERS,103(4). |
| MLA | Sato, T,et al."Band Structure and Fermi Surface of an Extremely Overdoped Iron-Based Superconductor KFe2As2".PHYSICAL REVIEW LETTERS 103.4(2009). |
入库方式： OAI收割
来源：物理研究所
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