| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Impurity Effects at Surfaces of a Photon-Dressed Bi$_2$Se$_3$ Thin Film |
| Qiu-Shi Wang1, Bin Zhang1, Wei-Zhu Yi1, Meng-Nan Chen2, Baigeng Wang1,3, R. Shen1,3** |
1National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093
2School of Science, Hangzhou Dianzi University, Hangzhou 310018
3Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093
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| Cite this article: |
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Qiu-Shi Wang, Bin Zhang, Wei-Zhu Yi et al 2018 Chin. Phys. Lett. 35 107201 |
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Abstract We investigate the impurity effects on surfaces of a thin film topological insulator, applied by an off-resonant circular polarized light. It is found that the off-resonant driving induces a quantized total Hall conductivity, when the driving strength is larger than a critical value and the Fermi level lies in the band gap, indicating that our system is converted into the topological phase. We also find that with the increasing disorder strength, the Dirac masses of top and bottom surfaces are renormalized and then fixed to half of their initial values, respectively, which will shrink the widths of the half-integer plateau of anomalous Hall conductivities.
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Received: 02 July 2018
Published: 15 September 2018
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| PACS: |
72.80.Ng
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(Disordered solids)
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73.23.-b
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(Electronic transport in mesoscopic systems)
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73.43.-f
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(Quantum Hall effects)
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03.65.Vf
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(Phases: geometric; dynamic or topological)
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| Fund: Supported by the National Key R&D Program of China under Grant No 2017YFA0303203, and the National Natural Science Foundation of China under Grant Nos 11574217 and 11474149. |
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| [1] | Bernevig B A, Hughes T L and Zhang S C 2006 Science 314 1757 | | [2] | Fu L, Kane C L and Mele E J 2007 Phys. Rev. Lett. 98 106803 | | [3] | Kane C L and Mele E J 2005 Phys. Rev. Lett. 95 146802 | | [4] | Yang W M, Lin C J, Liao J and Li Y Q 2013 Chin. Phys. B 22 097202 | | [5] | Hsieh D, Qian D, Wray L, Xia Y, Hor Y S, Cava R J and Hasan M Z 2008 Nature 452 970 | | [6] | Roth A, Brune C, Buhmann H, Molenkamp L W, Maciejko J, Qi X L and Zhang S C 2009 Science 325 294 | | [7] | Feng Y, Wang Y Y, Feng X et al 2016 Chin. Phys. B 25 087307 | | [8] | Zhou B, Lu H Z, Chu R L, Shen S Q and Niu Q 2008 Phys. Rev. Lett. 101 246807 | | [9] | Lu M H, He C, Sun X C et al 2017 Acta Phys. Sin. 66 224203 (in Chinese) | | [10] | König M, Buhmann H, Molenkamp L W, Hughes T, Liu C X, Qi X L and Zhang S C 2008 J. Phys. Soc. Jpn. 77 031007 | | [11] | König M, Buhmann H, Molenkamp L W, Hughes T, LiuC X, Qi X L and Zhang S C 2010 Phys. Today 63 33 | | [12] | König M, Wiedmann S, Brune C, Roth A, Buhmann H, Molenkamp L W, Qi X L and Zhang S C 2007 Science 318 766 | | [13] | Oka T and Aoki H 2009 Phys. Rev. B 79 081406(R) | | [14] | Lindner N H, Refael G and Galitski V 2011 Nat. Phys. 7 490 | | [15] | Kitagawa T, Oka T, Brataas A, FuL and Demler E 2011 Phys. Rev. B 84 235108 | | [16] | Wang Y H, Steinberg H, Jarillo-Herrero P and Gedik N 2013 Science 342 453 | | [17] | Chen M N, Su W, Deng M X, Ruan J W, Luo W, Shao D X, Sheng L and Xing D Y 2016 Phys. Rev. B 94 205429 | | [18] | Liu H, Sun J T, Cheng C, Liu F and Meng S 2018 Phys. Rev. Lett. 120 237403 | | [19] | Hübener H, Sentef M A, Giovannini U D, Kemper A F and Rubio A 2017 Nat. Commun. 8 13940 | | [20] | Onoda M, Avishai Y and Nagaosa N 2007 Phys. Rev. Lett. 98 076802 | | [21] | Liu Q, Liu C X, Xu C K, Qi X L and Zhang S C 2009 Phys. Rev. Lett. 102 156603 | | [22] | Li J, Chu R L, Jain J K and Shen S Q 2009 Phys. Rev. Lett. 102 136806 | | [23] | Song J T, Liu H W, Jiang H, Sun Q F and Xie X C 2012 Phys. Rev. B 85 195125 | | [24] | Shon N H and Ando T 1998 J. Phys. Soc. Jpn. 67 2421 | | [25] | Titum P, Lindner N H, Rechtsman M C and Refael G 2015 Phys. Rev. Lett. 114 056801 | | [26] | Li H, Sheng L, Sheng D N and Xing D Y 2010 Phys. Rev. B 82 165104 | | [27] | Wang H Q, Yang Y Y, Ju Y, Sheng L and Xing D Y 2013 Acta Phys. Sin. 62 037202 (in Chinese) | | [28] | Rammer J 2004 Quantum Transport Theory (Boulder: Westview Press) | | [29] | Sinitsyn N A, Hill J E, Min H, Sinova J and MacDonald A H 2006 Phys. Rev. Lett. 97 106804 | | [30] | Rostami H and Cappelluti E 2017 Phys. Rev. B 96 054205 | | [31] | March, D J J and Franz M 2012 Phys. Rev. B 86 155146 | | [32] | Zhai X and Jin G J 2014 Phys. Rev. B 89 235416 |
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