CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Prev
Next
|
|
|
Effects of interface bound states on the shot noise in normal metal-low-dimensional Rashba semiconductor tunnel junctions with induced s-wave pairing potential |
Wen-Xiang Chen(陈文祥), Rui-Qiang Wang(王瑞强), Liang-Bin Hu(胡梁宾) |
Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631, China |
|
|
Abstract We consider the effects of interface bound states on the electrical shot noise in tunnel junctions formed between normal metals and one-dimensional (1D) or two-dimensional (2D) Rashba semiconductors with proximity-induced s-wave pairing potential. We investigate how the shot noise properties vary as the interface bound state is evolved from a non-zero energy bound state to a zero-energy bound state. We show that in both 1D and 2D tunnel junctions, the ratio of the noise power to the charge current in the vicinity of zero bias voltage may be enhanced significantly due to the induction of the midgap interface bound state. But as the interface bound state evolves from a non-zero energy bound state to a zero-energy bound state, this ratio tends to vanish completely at zero bias voltage in 1D tunnel junctions, while in 2D tunnel junctions it decreases smoothly to the usual classical Schottky value for the normal state. Some other important aspects of the shot noise properties in such tunnel junctions are also clarified.
|
Received: 16 December 2018
Revised: 24 January 2019
Accepted manuscript online:
|
PACS:
|
72.10.Bg
|
(General formulation of transport theory)
|
|
72.25.Dc
|
(Spin polarized transport in semiconductors)
|
|
72.25.Ba
|
(Spin polarized transport in metals)
|
|
72.15.-v
|
(Electronic conduction in metals and alloys)
|
|
Corresponding Authors:
Liang-Bin Hu
E-mail: lbhu26@126.com
|
Cite this article:
Wen-Xiang Chen(陈文祥), Rui-Qiang Wang(王瑞强), Liang-Bin Hu(胡梁宾) Effects of interface bound states on the shot noise in normal metal-low-dimensional Rashba semiconductor tunnel junctions with induced s-wave pairing potential 2019 Chin. Phys. B 28 057201
|
[1] |
Linder J and Robinson J W A 2015 Nat. Phys. 11 307
|
[2] |
Beckmann D 2016 J. Phys. C 28 163001
|
[3] |
Eschrig M 2011 Physics Today 64 43
|
[4] |
Jacobsen S H, Kulagina I and Linder J 2016 Sci. Rep. 6 23926
|
[5] |
Costa A, Högl P and Fabian J 2017 Phys. Rev. B 95 024514
|
[6] |
Espedal C, Yokoyama T and Linder J 2016 Phys. Rev. Lett. 116 127002
|
[7] |
Konschelle F, Tokatly I V and Bergeret F S 2015 Phys. Rev. B 92 125443
|
[8] |
Amundsen M and Linder J 2017 Phys. Rev. B 96 064508
|
[9] |
Bobkova I V and Bobkov A M 2017 Phys. Rev. B 95 184518
|
[10] |
Sato M, Takahashi Y and Fujimoto S 2009 Phys. Rev. Lett. 103 020401
|
[11] |
Sau J D, Lutchyn R M, Tewari S and Das Sarma S 2010 Phys. Rev. Lett. 104 040502
|
[12] |
Alicea J 2010 Phys. Rev. B 81 125318
|
[13] |
Lutchyn R M, Sau J D and Das Sarma S 2010 Phys. Rev. Lett. 105 077001
|
[14] |
Oreg Y, Refael G and von Oppen F 2010 Phys. Rev. Lett. 105 177002
|
[15] |
Stanescu T D, Lutchyn R M and Das Sarma S 2011 Phys. Rev. B 84 144522
|
[16] |
Yamakage A, Tanaka Y and Nagaosa N 2012 Phys. Rev. Lett. 108 087003
|
[17] |
Ekin J W, Xu Y, Mao S, Venkatesan T, Face D W, Eddy M and Wolf S A 1997 Phys. Rev. B 56 13746
|
[18] |
Wagenknecht M, Koelle D, Kleiner R, Graser S, Schopohl N, Chesca B, Tsukada A, Goennenwein S T B and Gross R 2008 Phys. Rev. Lett. 100 227001
|
[19] |
Mourik V, Zuo K, Frolov S M, Plissard S R, Bakkers E P A M and Kouwenhoven L P 2012 Science 336 1003
|
[20] |
Deng M T, Yu C L, Huang G Y, Larsson M, Caroff P and Xu H Q 2012 Nano Lett. 12 6414
|
[21] |
Das A, Ronen Y, Most Y, Oreg Y, Heiblum M and Shtrikman H 2012 Nat. Phys. 8 887
|
[22] |
Rokhinson L P, Liu X Y and Furdyna J K 2012 Nat. Phys. 8 795
|
[23] |
Finck A D K, Van Harlingen D J, Mohseni P K, Jung K and Li X 2013 Phys. Rev. Lett. 110 126406
|
[24] |
Churchill H O H, Fatemi V, Grove-Rasmussen K, Deng M T, Caroff P, Xu H Q and Marcus C M 2013 Phys. Rev. B 87 241401
|
[25] |
Chang W, Albrecht S M, Jespersen T S, Kuemmeth F, Krogstrup P, Nygrd J and Marcus C M 2015 Nat. Nanotechnol. 10 232
|
[26] |
Stanescu T D and Tewari S 2013 J. Phys. C 25 233201
|
[27] |
Roy D, Bondyopadhaya N and Tewari S 2013 Phys. Rev. B 88 020502
|
[28] |
Das Sarma S, Nag A and Sau J D 2016 Phys. Rev. B 94 035143
|
[29] |
Blanter Y M and Büttiker M 2000 Phys. Rep. 336 1
|
[30] |
Anantram M P and Datta S 1996 Phys. Rev. B 53 16390
|
[31] |
Tanaka Y, Asai T, Yoshida N, Inoue J and Kashiwaya S 2000 Phys. Rev. B 61 11902
|
[32] |
Zhu J X and Ting C S 1999 Phys. Rev. B 59 14165
|
[33] |
de Jong M J M and Beenakker C W J 1994 Phys. Rev. B 49 16070
|
[34] |
Kane C L and Fisher M P A 1994 Phys. Rev. Lett. 72 724
|
[35] |
Landauer R 1993 Phys. Rev. B 47 16427
|
[36] |
Liu K, Xia K and Bauer G E W 2012 Phys. Rev. B 86 020408
|
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
|
|
|