Experimental realization of two-dimensional Dirac nodal line fermions in monolayer Cu2Si
文献类型：期刊论文
| 作者 | Feng, Baojie; Fu, Botao; Kasamatsu, Shusuke; Ito, Suguru; Cheng, Peng; Liu, Cheng-Cheng; Feng, Ya; Wu, Shilong; Mahatha, Sanjoy K.; Sheverdyaeva, Polina |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2017 |
| 卷号 | 8页码:1007 |
| ISSN号 | 2041-1723 |
| 英文摘要 | Topological nodal line semimetals, a novel quantum state of materials, possess topologically nontrivial valence and conduction bands that touch at a line near the Fermi level. The exotic band structure can lead to various novel properties, such as long-range Coulomb interaction and flat Landau levels. Recently, topological nodal lines have been observed in several bulk materials, such as PtSn4, ZrSiS, TlTaSe2 and PbTaSe2. However, in two-dimensional materials, experimental research on nodal line fermions is still lacking. Here, we report the discovery of two-dimensional Dirac nodal line fermions in monolayer Cu2Si based on combined theoretical calculations and angle-resolved photoemission spectroscopy measurements. The Dirac nodal lines in Cu2Si form two concentric loops centred around the Gamma point and are protected by mirror reflection symmetry. Our results establish Cu2Si as a platform to study the novel physical properties in two-dimensional Dirac materials and provide opportunities to realize high-speed low-dissipation devices. |
| 公开日期 | 2017-12-25 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/13571]  |
| 专题 | 2017专题 |
| 推荐引用方式 GB/T 7714 | Feng, Baojie,Fu, Botao,Kasamatsu, Shusuke,et al. Experimental realization of two-dimensional Dirac nodal line fermions in monolayer Cu2Si[J]. NATURE COMMUNICATIONS,2017,8:1007. |
| APA | Feng, Baojie.,Fu, Botao.,Kasamatsu, Shusuke.,Ito, Suguru.,Cheng, Peng.,...&Matsuda, Iwao.(2017).Experimental realization of two-dimensional Dirac nodal line fermions in monolayer Cu2Si.NATURE COMMUNICATIONS,8,1007. |
| MLA | Feng, Baojie,et al."Experimental realization of two-dimensional Dirac nodal line fermions in monolayer Cu2Si".NATURE COMMUNICATIONS 8(2017):1007. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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