Universal edge bands induced by linearly polarized irradiation on phosphorene
Phosphorene (a monolayer of black phosphorus) is a large gap semiconductor with high mobility and has great application potential. Numerical calculations reveal that phosphorene is a topologically trivial material and can only host edge bands on specified edges such as the zigzag edge. A linearly po...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/aa5016 |
| _version_ | 1797750840202625024 |
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| author | Mou Yang Wen-Lian Zhang Zhi-Jun Cai Rui-Qiang Wang Yan-Kui Bai |
| author_facet | Mou Yang Wen-Lian Zhang Zhi-Jun Cai Rui-Qiang Wang Yan-Kui Bai |
| author_sort | Mou Yang |
| collection | DOAJ |
| description | Phosphorene (a monolayer of black phosphorus) is a large gap semiconductor with high mobility and has great application potential. Numerical calculations reveal that phosphorene is a topologically trivial material and can only host edge bands on specified edges such as the zigzag edge. A linearly polarized irradiation on the phosphorene lattice results in the dynamic gaps in the quasi-energy spectrum. We found that the irradiation polarized in the zigzag direction induces new edge bands within the dynamic gaps on any type of edge (zigzag, armchair, or other bearded edge). We proposed a new gauge independent quantity, $\delta +g$ , to account for the appearence of universal edge bands, where δ is the detune and g is the light induced valence-conduction band transition element. The number of edge bands in the dynamic gaps is reflected by the winding number of it. |
| first_indexed | 2024-03-12T16:39:41Z |
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| id | doaj.art-9fe6fe7807bd4ce88386766cde413b76 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:39:41Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
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| series | New Journal of Physics |
| spelling | doaj.art-9fe6fe7807bd4ce88386766cde413b762023-08-08T14:35:40ZengIOP PublishingNew Journal of Physics1367-26302017-01-0119101300410.1088/1367-2630/aa5016Universal edge bands induced by linearly polarized irradiation on phosphoreneMou Yang0Wen-Lian Zhang1Zhi-Jun Cai2Rui-Qiang Wang3Yan-Kui Bai4Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University , Guangzhou 510006, People's Republic of ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University , Guangzhou 510006, People's Republic of ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University , Guangzhou 510006, People's Republic of ChinaGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University , Guangzhou 510006, People's Republic of ChinaCollege of Physical Science and Information Engineering and Hebei Advance Thin Films Laboratory, Hebei Normal University , Shijiazhuang, Hebei 050024, People's Republic of ChinaPhosphorene (a monolayer of black phosphorus) is a large gap semiconductor with high mobility and has great application potential. Numerical calculations reveal that phosphorene is a topologically trivial material and can only host edge bands on specified edges such as the zigzag edge. A linearly polarized irradiation on the phosphorene lattice results in the dynamic gaps in the quasi-energy spectrum. We found that the irradiation polarized in the zigzag direction induces new edge bands within the dynamic gaps on any type of edge (zigzag, armchair, or other bearded edge). We proposed a new gauge independent quantity, $\delta +g$ , to account for the appearence of universal edge bands, where δ is the detune and g is the light induced valence-conduction band transition element. The number of edge bands in the dynamic gaps is reflected by the winding number of it.https://doi.org/10.1088/1367-2630/aa5016phosphorenefloguet topological insulatoredge bandwinding number73.22.Pr72.80.Vp |
| spellingShingle | Mou Yang Wen-Lian Zhang Zhi-Jun Cai Rui-Qiang Wang Yan-Kui Bai Universal edge bands induced by linearly polarized irradiation on phosphorene New Journal of Physics phosphorene floguet topological insulator edge band winding number 73.22.Pr 72.80.Vp |
| title | Universal edge bands induced by linearly polarized irradiation on phosphorene |
| title_full | Universal edge bands induced by linearly polarized irradiation on phosphorene |
| title_fullStr | Universal edge bands induced by linearly polarized irradiation on phosphorene |
| title_full_unstemmed | Universal edge bands induced by linearly polarized irradiation on phosphorene |
| title_short | Universal edge bands induced by linearly polarized irradiation on phosphorene |
| title_sort | universal edge bands induced by linearly polarized irradiation on phosphorene |
| topic | phosphorene floguet topological insulator edge band winding number 73.22.Pr 72.80.Vp |
| url | https://doi.org/10.1088/1367-2630/aa5016 |
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