Strong Superconducting Proximity Effect in Pb-Bi2Te3 Hybrid Structures

@article{Qu2012StrongSP,
  title={Strong Superconducting Proximity Effect in Pb-Bi2Te3 Hybrid Structures},
  author={Fanming Qu and Fan Yang and Jie Shen and Yue-He Ding and Jun Chen and Zhongqing Ji and Guangtong Liu and Jie Fan and Xiunian Jing and Changli Yang and Li Lu},
  journal={Scientific Reports},
  year={2012},
  volume={2}
}
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 (100~300 nm thick) at a temperature very close to the superconducting Tc of Pb… 
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