CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Spatially resolved gap closing in single Josephson junctions constructed on Bi2Te3 surface |
Yuan Pang(庞远)1, Junhua Wang(王骏华)1, Zhaozheng Lyu(吕昭征)1, Guang Yang(杨光)1, Jie Fan(樊洁)1, Guangtong Liu(刘广同)1, Zhongqing Ji(姬忠庆)1, Xiunian Jing(景秀年)1,2, Changli Yang(杨昌黎)1,2, Li Lu(吕力)1,2 |
1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 Collaborative Innovation Center of Quantum Matter, Beijing 100871, China |
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Abstract Full gap closing is a prerequisite for hosting Majorana zero modes in Josephson junctions on the surface of topological insulators. Previously, we have observed direct experimental evidence of gap closing in Josephson junctions constructed on Bi2Te3 surface. In this paper we report further investigations on the position dependence of gap closing as a function of magnetic flux in single Josephson junctions constructed on Bi2Te3 surface.
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Received: 11 April 2016
Revised: 10 May 2016
Accepted manuscript online:
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PACS:
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74.45.+c
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(Proximity effects; Andreev reflection; SN and SNS junctions)
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03.65.Vf
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(Phases: geometric; dynamic or topological)
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71.70.Ej
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(Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)
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73.40.-c
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(Electronic transport in interface structures)
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Fund: Project supported by the National Basic Research Program of China (Grant Nos. 2009CB929101 and 2011CB921702), the National Natural Science Foundation of China (Grant Nos. 91221203, 11174340, 11174357, 91421303, and 11527806), and the Strategic Priority Research Program B of the Chinese Academy of Sciences (Grant No. XDB07010100). |
Corresponding Authors:
Li Lu
E-mail: lilu@iphy.ac.cn
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Cite this article:
Yuan Pang(庞远), Junhua Wang(王骏华), Zhaozheng Lyu(吕昭征), Guang Yang(杨光), Jie Fan(樊洁), Guangtong Liu(刘广同), Zhongqing Ji(姬忠庆), Xiunian Jing(景秀年), Changli Yang(杨昌黎), Li Lu(吕力) Spatially resolved gap closing in single Josephson junctions constructed on Bi2Te3 surface 2016 Chin. Phys. B 25 117402
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