| 圆环结构磁光光子晶体中的拓扑相变 |
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| 引用本文： | 沈清玮,徐林,蒋建华. 圆环结构磁光光子晶体中的拓扑相变[J]. 物理学报, 2017, 66(22): 224102-224102. DOI: 10.7498/aps.66.224102 |
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| 作者姓名： | 沈清玮 徐林 蒋建华 |
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| 作者单位： | 1. 苏州大学物理与光电·能源学部, 苏州 215006;2. 苏州大学, 2011 苏州纳米科技协同创新中心, 苏州 215006 |
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| 基金项目： | 国家自然科学基金（批准号：11675116）和苏州大学科研启动基金资助的课题. |
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| 摘 要： | 二维圆环结构的三角晶格磁光光子晶体中可以呈现多重拓扑相.在不同的几何参数和磁场下,这些拓扑相包括正常光子带隙相、量子自旋霍尔相和反常量子霍尔相.与文献[1]类似,该结果展现了二维光子晶体丰富的拓扑相变现象.
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| 关 键 词： | 光子晶体 拓扑相变 拓扑边界态 |
| 收稿时间： | 2017-08-30 |
Topological phase transitions in core-shell gyromagnetic photonic crystal |
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| Shen Qing-Wei,Xu Lin,Jiang Jian-Hua. Topological phase transitions in core-shell gyromagnetic photonic crystal[J]. Acta Physica Sinica, 2017, 66(22): 224102-224102. DOI: 10.7498/aps.66.224102 |
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| Authors: | Shen Qing-Wei Xu Lin Jiang Jian-Hua |
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| Affiliation: | 1. Department of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China;2. Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China |
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| Abstract: | We found that core-shell gyromagnetic photonic crystal of two-dimensional triangular lattice exhibit topological phases. In a certain parameters and magnetic field, those phases could be a conventional insulator phase, a quantum spin Hall phase, and a quantum anomalous Hall phase. Different from the structure of Ref[1], phase transitions in our core-shell structure does not involve changes of space symmetry, which depend on parameters of our structure and the broken of time reverse symmetry. Our result shows the variety of topological phase transitions in photonic crystals. |
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| Keywords: | photonic crystal topological phase transition topological edge state |
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