Observation of a nodal chain with Dirac surface states in TiB2
文献类型：期刊论文
| 作者 | Yi, CJ; Lv, BQ; Wu, QS; Fu, BB; Gao, X; Yang, M; Peng, XL; Li, M; Huang, YB; Richard, P |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2018 |
| 卷号 | 97期号:20页码:- |
| 关键词 | Wannier Functions Semimetal Discovery Fermions |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.97.201107 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Topological nodal-line semimetals (TNLSMs) are characterized by symmetry-protected band crossings extending along one-dimensional lines in momentum space. The nodal lines exhibit a variety of possible configurations, such as nodal ring, nodal link, nodal chain, and nodal knot. Here, using angle-resolved photoemission spectroscopy, we observe nodal rings on the orthogonal k(z) = 0 and k(x) = 0 planes of the Brillouin zone in TiB2. The nodal rings connect with each other on the intersecting line Gamma-Kof the orthogonal planes forming a remarkable nodal-chain structure. Furthermore, we observe surface states (SSs) on the (001) cleaved surface, which are consistent with the calculated SSs considering the contribution from both Ti and B terminations. The calculated SSs have novel Dirac-cone-like band structures, which are distinct from the usual drumhead SSs with a single flatband proposed in other TNLSMs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000432962700002 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/29091]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Yi, CJ 2.Lv, BQ 3.Wu, QS 4.Fu, BB 5.Gao, X 6.Yang, M 7.Peng, XL 8.Li, M 9.Huang, YB 10.Richard, P |
| 推荐引用方式 GB/T 7714 | Yi, CJ,Lv, BQ,Wu, QS,et al. Observation of a nodal chain with Dirac surface states in TiB2[J]. PHYSICAL REVIEW B,2018,97(20):-. |
| APA | Yi, CJ.,Lv, BQ.,Wu, QS.,Fu, BB.,Gao, X.,...&Ding, H.(2018).Observation of a nodal chain with Dirac surface states in TiB2.PHYSICAL REVIEW B,97(20),-. |
| MLA | Yi, CJ,et al."Observation of a nodal chain with Dirac surface states in TiB2".PHYSICAL REVIEW B 97.20(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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