Strong Superconducting Proximity Effect in Pb-Bi2Te3 Hybrid Structures
文献类型：期刊论文
| 作者 | Qu, FM ; Yang, F ; Shen, J ; Ding, Y ; Chen, J ; Ji, ZQ ; Liu, GT ; Fan, J ; Jing, XN ; Yang, CL ; Lu, L |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2012 |
| 卷号 | 2 |
| 关键词 | TOPOLOGICAL INSULATORS SUPERCURRENT JUNCTIONS |
| ISSN号 | 2045-2322 |
| 通讯作者 | Lu, L (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Daniel Chee Tsui Lab, Beijing 100190, Peoples R China. |
| 中文摘要 | To study the interface between a conventional superconductor and a topological insulator, we fabricated Pb-Bi2Te3-Pb lateral and sandwiched junctions, and performed electron transport measurements down to low temperatures. The results show that there is a strong superconducting proximity effect between Bi2Te3 and Pb, as that a supercurrent can be established along the thickness direction of the Bi2Te3 flakes(100 similar to 300 nm thick) at a temperature very close to the superconducting T-c of Pb. Moreover, a Josephson current can be established over several microns in the lateral direction between two Pb electrodes on the Bi2Te3 surface. We have further demonstrated that superconducting quantum interference devices can be constructed based on the proximity-effect-induced superconductivity. The critical current of the devices exhibits s-wave-like interference and Fraunhofer diffraction patterns. With improved designs, Josephson devices of this type would provide a test-bed for exploring novel phenomena such as Majorana fermions in the future. |
| 收录类别 | SCI |
| 资助信息 | MOST [2009CB929101, 2011CB921702]; NSFC [11174340, 11174357]; CAS |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53172]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Qu, FM,Yang, F,Shen, J,et al. Strong Superconducting Proximity Effect in Pb-Bi2Te3 Hybrid Structures[J]. SCIENTIFIC REPORTS,2012,2. |
| APA | Qu, FM.,Yang, F.,Shen, J.,Ding, Y.,Chen, J.,...&Lu, L.(2012).Strong Superconducting Proximity Effect in Pb-Bi2Te3 Hybrid Structures.SCIENTIFIC REPORTS,2. |
| MLA | Qu, FM,et al."Strong Superconducting Proximity Effect in Pb-Bi2Te3 Hybrid Structures".SCIENTIFIC REPORTS 2(2012). |
入库方式： OAI收割
来源：物理研究所
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