Counterpropagating topological interface states in graphene patchwork structures with regular arrays of nanoholes
文献类型：期刊论文
| 作者 | Hu, Xiao; Yang, Hongxin; Jiang, Yong-Cheng; Kariyado, Toshikaze |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2018 |
| 卷号 | 98期号:19 |
| 关键词 | Initio Molecular-dynamics Total-energy Calculations Massless Dirac Fermions Wave Basis-set Antidot Lattices Electronic-properties Semiconductors Superlattices Lithography Realization |
| 英文摘要 | Topological properties of graphene with nanoholes are theoretically investigated in detail. It is revealed that two types of hole arrangements, honeycomb array and triangular array, give rise to two topologically distinct states. We give a concise two-step strategy for choosing array structures, where two types of Brillouin zone folding, corner-to-corner or corner-to-center, play crucial roles. The topological nontriviality is confirmed by interface states at a domain wall between the honeycomb and triangular hole arrays, which show a cross-shaped band structure resembling helical edge states in quantum spin Hall states. We also diagnose the topology of the states from the view point of the topological crystalline insulator and show that the parity index against the C-2 rotation is a key quantity. These findings indicate that nanotechnology-based geometrical design and manipulation are promising in exploration of topological phases of matter. |
| 学科主题 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17018]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Hu, Xiao,Yang, Hongxin,Jiang, Yong-Cheng,et al. Counterpropagating topological interface states in graphene patchwork structures with regular arrays of nanoholes[J]. PHYSICAL REVIEW B,2018,98(19). |
| APA | Hu, Xiao,Yang, Hongxin,Jiang, Yong-Cheng,&Kariyado, Toshikaze.(2018).Counterpropagating topological interface states in graphene patchwork structures with regular arrays of nanoholes.PHYSICAL REVIEW B,98(19). |
| MLA | Hu, Xiao,et al."Counterpropagating topological interface states in graphene patchwork structures with regular arrays of nanoholes".PHYSICAL REVIEW B 98.19(2018). |
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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