CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Prev
Next
|
|
|
Double band-inversions of bilayer phosphorene under strain and their effects on optical absorption |
Shi He(何诗), Mou Yang(杨谋), Rui-Qiang Wang(王瑞强) |
Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China |
|
|
Abstract Strain is a powerful tool to engineer the band structure of bilayer phosphorene. The band gap can be decreased by vertical tensile strain or in-plane compressive strain. At a critical strain, the gap is closed and the bilayer phosphorene is turn to be a semi-Dirac semimetal material. If the strain is stronger than the criterion, a band-inversion occurs and it re-happens when the strain is larger than another certain value. For the zigzag bilayer phosphorene ribbon, there are two edge band dispersions and each dispersion curve represents two degenerate edge bands. When the first band-inversion happens, one of the edge band dispersion disappears between the band-cross points while the other survives, and the latter will be eliminated between another pair of band-cross points of the second band-inversion. The optical absorption of bilayer phosphorene is highly polarized along armchair direction. When the strain is turn on, the optical absorption edge changes. The absorption rate for armchair polarized light is decreased by gap shrinking, while that for zigzag polarized light increases. The band-touch and band-inversion respectively result in the sublinear and linear of absorption curve versus light frequency in low frequency limit.
|
Received: 05 December 2017
Revised: 16 January 2018
Accepted manuscript online:
|
PACS:
|
73.22.-f
|
(Electronic structure of nanoscale materials and related systems)
|
|
73.23.-b
|
(Electronic transport in mesoscopic systems)
|
|
78.20.-e
|
(Optical properties of bulk materials and thin films)
|
|
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11774100 and 11474106). |
Corresponding Authors:
Mou Yang
E-mail: yang.mou@hotmail.com
|
Cite this article:
Shi He(何诗), Mou Yang(杨谋), Rui-Qiang Wang(王瑞强) Double band-inversions of bilayer phosphorene under strain and their effects on optical absorption 2018 Chin. Phys. B 27 047303
|
[1] |
Xia F, Wang H and Jia Y 2014 Nat. Commun. 5 4458
|
[2] |
Liu H, Neal A T, Zhu Z, Luo Z, Xu X, Tománek D and Ye P D 2014 ACS Nano 8 4033
|
[3] |
Rudenko A N, Brener S and Katsnelson M I 2016 Phys. Rev. Lett. 116 246401
|
[4] |
Li L, Kim J, Jin C, Ye G, Qiu D. Y, da Jornada F H, Shi Z, Chen L, Zhang Z, Yang F, Watanabe K, Taniguchi T, Ren W, Louie S G, Chen X, Zhang Y and Wang F 2017 Nat. Nanotechnol. 12 21
|
[5] |
Li L, Yu Y, Ye G J, Ge Q, Ou X, Wu H, Feng D, Chen X H and Zhang Y 2014 Nat. Nanotechnol. 9 372
|
[6] |
Koenig S P, Doganov R A, Schmidt H, Neto A H and Özyilmaz B 2014 Appl. Phys. Lett. 104 103106
|
[7] |
Yin D and Yoon Y 2016 J. Appl. Phys. 119 214312
|
[8] |
Youngblood N, Chen C, Koester S J and Li M 2015 Nat. Photon. 9 247
|
[9] |
Buscema M, Groenendijk D J, Blanter S I, Steele G A, van der Zant H S J and Castellanos-Gomez A 2014 Nano Lett. 14 3347
|
[10] |
Tran V, Soklaski R, Liang Y and Yang L 2014 Phys. Rev. B 89 235319
|
[11] |
Duan H J, Yang M and Wang R Q 2016 Physica E 81 177
|
[12] |
Wei Q and Peng X 2014 Appl. Phys. Lett. 104 251915
|
[13] |
Peng X, Wei Q and Copple A 2014 Phys. Rev. B 90 085402
|
[14] |
Han X, Stewart H M, Shevlin S A, Richard C, Catlow A and Guo Z X 2014 Nano Lett. 14 4607
|
[15] |
Jiang J W and Park H S 2015 Phys. Rev. B 91 235118
|
[16] |
Elahi M, Khaliji K, Tabatabaei S M, Pourfath M and Asgari R 2015 Phys. Rev. B 91 115412
|
[17] |
Sisakht E T, Fazileh F, Zare M H, Zarenia M and Peeters F M 2016 Phys. Rev. B 94 085417
|
[18] |
Yang M, Duan H J and Wang R Q 2016 Phys. Scr. 91 105801
|
[19] |
Rudenko A N, Yuan S and Katsnelson M I 2015 Phys. Rev. B 92 085419
|
[20] |
Kim J, Baik S S, Ryu S H, Sohn Y, Park S, Park B G, Denlinger J, Yi Y, Choi H J and Kim K S 2015 Science 349 723
|
[21] |
Rudenko A N, Yuan S and Katsnelson M I 2016 Phys. Rev. B 93 199906
|
[22] |
Harrison W A 1999 Elementary Electronic Structure (Singapore:World Scientific)
|
[23] |
Tang H, Jiang J W, Wang B S and Su Z B 2009 Solid State Commun. 149 82
|
[24] |
Ezawa M 2014 New J. Phys. 16 115004
|
[25] |
Yang M, Duan H J and Wang R Q 2015 JETP Lett. 102 610
|
[26] |
Yang M, Duan H J, He S, Zhang W L and Wang R Q 2016 Phys. Lett. A 380 3832
|
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
Altmetric
|
blogs
Facebook pages
Wikipedia page
Google+ users
|
Online attention
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
View more on Altmetrics
|
|
|