Evidence for topological superconductivity: Topological edge states in Bi2Te3/FeTe heterostructure.
- Resource Type
- Article
- Authors
- Guo, Bin; Shi, Kai-Ge; Qin, Hai-Lang; Zhou, Liang; Chen, Wei-Qiang; Ye, Fei; Mei, Jia-Wei; He, Hong-Tao; Pan, Tian-Luo; Wang, Gan
- Source
- Chinese Physics B. Aug2020, Vol. 29 Issue 9, p1-6. 6p.
- Subject
- *SEMIMETALS
*SCANNING tunneling microscopy
*SUPERCONDUCTIVITY
*PHOTOELECTRON spectroscopy
*TUNNELING spectroscopy
*MAJORANA fermions
*TOPOLOGICAL property
- Language
- ISSN
- 1674-1056
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. [ABSTRACT FROM AUTHOR]