Observation of Dirac Cone Electronic Dispersion in BaFe2As2
文献类型：期刊论文
| 作者 | Richard, P ; Nakayama, K ; Sato, T ; Neupane, M ; Xu, YM ; Bowen, JH ; Chen, GF ; Luo, JL ; Wang, NL ; Dai, X ; Fang, Z ; Ding, H ; Takahashi, T |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2010 |
| 卷号 | 104期号:13 |
| 关键词 | FERMI-SURFACE BA0.6K0.4FE2AS2 |
| ISSN号 | 0031-9007 |
| 通讯作者 | Richard, P (reprint author), Tohoku Univ, Adv Inst Mat Res, WPI Res Ctr, Sendai, Miyagi 9808577, Japan. |
| 中文摘要 | We performed an angle-resolved photoemission spectroscopy study of BaFe2As2, which is the parent compound of the so-called 122 phase of the iron-pnictide high-temperature superconductors. We reveal the existence of a Dirac cone in the electronic structure of this material below the spin-density-wave temperature, which is responsible for small spots of high photoemission intensity at the Fermi level. Our analysis suggests that the cone is slightly anisotropic and its apex is located very near the Fermi level, leading to tiny Fermi surface pockets. The bands forming the cone show an anisotropic leading edge gap away from the cone that suggests a nodal spin-density-wave description. |
| 收录类别 | SCI |
| 资助信息 | JSPS; JST-TRIP; JST-CREST; MEXT of Japan; Chinese Academy of Sciences; Ministry of Science and Technology of China; NSF of the U.S |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50142]  |
| 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 | Richard, P,Nakayama, K,Sato, T,et al. Observation of Dirac Cone Electronic Dispersion in BaFe2As2[J]. PHYSICAL REVIEW LETTERS,2010,104(13). |
| APA | Richard, P.,Nakayama, K.,Sato, T.,Neupane, M.,Xu, YM.,...&Takahashi, T.(2010).Observation of Dirac Cone Electronic Dispersion in BaFe2As2.PHYSICAL REVIEW LETTERS,104(13). |
| MLA | Richard, P,et al."Observation of Dirac Cone Electronic Dispersion in BaFe2As2".PHYSICAL REVIEW LETTERS 104.13(2010). |
入库方式： OAI收割
来源：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。