| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Prev
Next
|
|
|
Light-modulated electron retroreflection and Klein tunneling in a graphene-based n-p-n junction |
| Xingfei Zhou(周兴飞)1,†, Ziying Wu(吴子瀛)2, Yuchen Bai(白宇晨)1, Qicheng Wang(王起程)1, Zhentao Zhu(朱震涛)1, Wei Yan(闫巍)1,‡, and Yafang Xu(许亚芳)2,§ |
1 New Energy Technology Engineering Laboratory of Jiangsu Province, School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
2 College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China |
|
|
|
|
Abstract We investigate the electron retroreflection and the Klein tunneling across a graphene-based n-p-n junction irradiated by linearly polarized off-resonant light with the polarization along the x direction. The linearly polarized off-resonant light modifies the band structure of graphene, which leads to the anisotropy of band structure. By adjusting the linearly polarized light and the direction of n-p-n junction simultaneously, the electron retroreflection appears and the anomalous Klein tunneling, the perfect transmission at a nonzero incident angle regardless of the width and height of potential barrier, happens, which arises from the fact that the light-induced anisotropic band structure changes the relation of wavevector and velocity of electron. Our finding provides an alternative and flexible method to modulate electron retroreflection and Klein tunneling.
|
Received: 23 August 2021
Revised: 15 September 2021
Accepted manuscript online: 30 September 2021
|
|
PACS:
|
73.22.Pr
|
(Electronic structure of graphene)
|
| |
73.20.At
|
(Surface states, band structure, electron density of states)
|
| |
78.67.-n
|
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
|
|
| Fund: This work was supported by the National Natural Science Foundation of China (Grant Nos. 11804167, 11804291, and 11904175), the Natural Science Foundation of Jiangsu Province, China (Grant Nos. BK20180739, BK20180740, and BK20180890), the Innovation Research Project of Jiangsu Province, China (Grant No. CZ0070619002), NJUPT-SF (Grant Nos. NY218128 and NY218135), and NJUPT-STITP (Grant No. XYB2020301). |
Corresponding Authors:
Xingfei Zhou, Wei Yan, Yafang Xu
E-mail: zxf@njupt.edu.cn;yanwei@njupt.edu.cn;yfxu@yzu.edu.cn
|
Cite this article:
Xingfei Zhou(周兴飞), Ziying Wu(吴子瀛), Yuchen Bai(白宇晨), Qicheng Wang(王起程), Zhentao Zhu(朱震涛), Wei Yan(闫巍), and Yafang Xu(许亚芳) Light-modulated electron retroreflection and Klein tunneling in a graphene-based n-p-n junction 2022 Chin. Phys. B 31 047301
|
[1] Novoselov K S, Geim A K, Morozov S V, Jiang D, Zhang Y, Dubonos S V, Grigorieva I V and Firsov A A 2004 Science 306 666
[2] Kane C L and Mele E J 2005 Phys. Rev. Lett. 95 146802
[3] Zhang Y, Tan Y W, Stormer H L and Kim P 2005 Nature 438 201
[4] Katsnelson M I, Novoselov K S and Geim A K 2006 Nat. Phys. 2 620
[5] Beenakker C W J 2006 Phys. Rev. Lett. 97 067007
[6] Xiao D, Yao W and Niu Q 2007 Phys. Rev. Lett. 99 236809
[7] Rycerz A, Tworzydlo J and Beenakker C W J 2007 Nat. Phys. 3 172
[8] Beenakker C W J 2008 Rev. Mod. Phys. 80 1337
[9] Castro Neto A H, Guinea F, Peres N M R, Novoselov K S and Geim A K 2009 Rev. Mod. Phys. 81 109
[10] Bistritzer R and MacDonald A H 2011 Proc. Natl. Acad. Sci. USA 108 12233
[11] Qiao Z, Tse W K, Jiang H, Yao Y and Niu Q 2011 Phys. Rev. Lett. 107 256801
[12] Zhai X and Jin G 2014 Phys. Rev. B 89 235416
[13] Xu C and Balents L 2018 Phys. Rev. Lett. 121 087001
[14] McIver J W, Schulte B, Stein F U, Matsuyama T, Jotzu G, Meier G and Cavalleri A 2020 Nat. Phys. 16 38
[15] Wang W, Lü X and Xie H 2021 Chin. Phys. B 30 066701
[16] Cao Y, Fatemi V, Fang S, Watanabe K, Taniguchi T, Kaxiras E and Jarillo-Herrero P 2018 Nature 556 43
[17] Tarnopolsky G, Kruchkov A J and Vishwanath A 2019 Phys. Rev. Lett. 122 106405
[18] Yankowitz M, Chen S, Polshyn H, Watanabe K, Taniguchi T, Graf D, Young A F and Dean C R 2019 Science 363 11059
[19] Ang Y S, Ma Z and Zhang C 2012 Sci. Rep. 2 1013
[20] Xu Y and Jin G 2016 Solid State Commun. 247 72
[21] Zhou X 2019 Phys. Rev. B 100 195139
[22] Chu S I and Telnov D A 2004 Phys. Rep. 390 1
[23] Kitagawa T, Oka T, Brataas A, Fu L and Demler E 2011 Phys. Rev. B 84 235108
[24] Wang Y H, Steinberg H, Jarillo-Herrero P and Gedik N 2013 Science 342 453
[25] Rechtsman M C, Zeuner J M, Plotnik Y, Lumer Y, Podolsky D, Dreisow F, Nolte S, Segev M and Szameit A 2013 Nature 496 196
[26] Oka T and Kitamura S 2019 Annu. Rev. Condens. Matter Phys. 10 387
[27] Iurov A, Zhemchuzhna L, Fekete P, Gumbs G and Huang D 2020 Phys. Rev. Res. 2 043245
[28] Klein O Z 1929 Physics 53 157
[29] Calogeracos A and Dombey N 1999 Contemp. Phys. 40 313
[30] Zeb M A, Sabeeh K and Tahir M 2008 Phys. Rev. B 78 165420
[31] Rozhkov A, Giavaras G, Bliokh Y P, Freilikher V and Nori F 2011 Phys. Rep. 503 77
[32] Park C S 2012 Solid State Commun. 152 2018
[33] Oh H, Coh S, Son Y W and Cohen M L 2016 Phys. Rev. Lett. 117 016804
[34] Stander N, Huard B and Goldhaber-Gordon D 2009 Phys. Rev. Lett. 102 026807
[35] Allain P E and Fuchs J N 2011 Eur. Phys. J. B 83 301
[36] Li Z, Cao T, Wu M and Louie S G 2017 Nano Lett. 17 2280
[37] Nguyen V H and Charlier J C 2018 Phys. Rev. B 97 235113
[38] Zhang S H and Yang W 2018 Phys. Rev. B 97 235440
[39] Zhou X, Xu Y and Jin G 2015 Phys. Rev. B 92 235436
[40] Cheng R and Zhou X 2019 J. Appl. Phys. 125 175105
[41] Zhou X, Lan M, Ye Y, Feng Y, Zhai X, Gong L, Wang H, Zhao J and Xu Y 2019 Europhys. Lett. 125 37001
[42] Young A F and Kim P 2009 Nat. Phys. 5 222 |
| 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
|
|
|
