Electronic structure of heavily electron-doped BaFe1.7Co0.3As2 studied by angle-resolved photoemission
文献类型:期刊论文
作者 | Sekiba, Y ; Sato, T ; Nakayama, K ; Terashima, K ; Richard, P ; Bowen, JH ; Ding, H ; Xu, YM ; Li, LJ ; Cao, GH ; Xu, ZA ; Takahashi, T |
刊名 | NEW JOURNAL OF PHYSICS
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出版日期 | 2009 |
卷号 | 11 |
关键词 | NODELESS SUPERCONDUCTING GAPS LAO1-XFXFEAS COMPOUND |
ISSN号 | 1367-2630 |
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 photo-emission spectroscopy on heavily electron-doped non-superconducting (SC) BaFe1.7Co0.3As2. We find that the two hole Fermi surface pockets at the Brillouin zone center observed in the hole-doped superconducting Ba0.6K0.4Fe2As2 are absent or very small in this compound, while the two electron pockets at the zone corner significantly expand due to electron doping by the Co substitution. Comparison of the Fermi surface between non-SC and SC samples indicates that the coexistence of hole and electron pockets connected via the antiferromagnetic wave vector is essential in realizing the mechanism of superconductivity in the iron-based superconductors. |
收录类别 | SCI |
资助信息 | JSPS; JST-TRIP; JST-CREST; MEXT of Japan; Chinese Academy of Sciences; NSF; Ministry of Science and Technology of China; NSF of US |
语种 | 英语 |
公开日期 | 2013-09-17 |
源URL | [http://ir.iphy.ac.cn/handle/311004/37182] ![]() |
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 | Sekiba, Y,Sato, T,Nakayama, K,et al. Electronic structure of heavily electron-doped BaFe1.7Co0.3As2 studied by angle-resolved photoemission[J]. NEW JOURNAL OF PHYSICS,2009,11. |
APA | Sekiba, Y.,Sato, T.,Nakayama, K.,Terashima, K.,Richard, P.,...&Takahashi, T.(2009).Electronic structure of heavily electron-doped BaFe1.7Co0.3As2 studied by angle-resolved photoemission.NEW JOURNAL OF PHYSICS,11. |
MLA | Sekiba, Y,et al."Electronic structure of heavily electron-doped BaFe1.7Co0.3As2 studied by angle-resolved photoemission".NEW JOURNAL OF PHYSICS 11(2009). |
入库方式: OAI收割
来源:物理研究所
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