| Topological Insulators in α-Graphyne |
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| 引用本文： | 王国祥,侯净敏. Topological Insulators in α-Graphyne[J]. 理论物理通讯, 2013, 59(4): 489-493 |
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| 作者姓名： | 王国祥 侯净敏 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos.11004028 and 11274061 |
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| 摘 要： | In this paper, we investigate topological phases of α-graphyne with tight-binding method. By calculating the topological invariant Z2 and the edge states, we identify topological insulators. We present the phase diagrams of α-graphyne with different filling fractions as a function of spin-orbit interaction and the nearest-neighbor hopping energy. We find there exist topological insulators in α-graphyne. We analyze and discuss the characteristics of topological phases of α-graphyne.
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| 关 键 词： | α-graphyne topological insulator Zinvariant |
| 收稿时间： | 2012-09-14 |
Topological Insulators in α-Graphyne |
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| WANG Guo-Xiang,HOU Jing-Min. Topological Insulators in α-Graphyne[J]. Communications in Theoretical Physics, 2013, 59(4): 489-493 |
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| Authors: | WANG Guo-Xiang HOU Jing-Min |
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| Affiliation: | Department of Physics, Southeast University, Nanjing 211189, China |
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| Abstract: | In this paper, we investigate topological phases of α-graphyne with tight-binding method. By calculating the topological invariant Z2 and the edge states, we identify topological insulators. We present the phase diagrams of α-graphyne with different filling fractions as a function of spin-orbit interaction and the nearest-neighbor hopping energy. We find there exist topological insulators in α-graphyne. We analyze and discuss the characteristics of topological phases of α-graphyne. |
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| Keywords: | α-graphyne topological insulator Z2 invariant |
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