Chinese Physics B, Volume. 29, Issue 9, (2020)
Evidence for topological superconductivity: Topological edge states in Bi2Te3/FeTe heterostructure
Majorana fermions have been predicted to exist at the edge states of a two-dimensional topological superconductor. We fabricated single quintuple layer (QL) Bi2Te3/FeTe heterostructure with the step-flow epitaxy method and studied the topological properties of this system by using angle-resolved photoemission spectroscopy and scanning tunneling microscopy/spectroscopy. We observed the coexistence of robust superconductivity and edge states on the single QL Bi2Te3 islands which can be potential evidence for topological superconductor.
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Bin Guo, Kai-Ge Shi, Hai-Lang Qin, Liang Zhou, Wei-Qiang Chen, Fei Ye, Jia-Wei Mei, Hong-Tao He, Tian-Luo Pan, Gan Wang. Evidence for topological superconductivity: Topological edge states in Bi2Te3/FeTe heterostructure[J]. Chinese Physics B, 2020, 29(9):
Received: Apr. 13, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Pan Tian-Luo (pantl@sustech.edu.cn)