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Monolayer Superconductivity and Tunable Topological Electronic Structure at the Fe(Te,Se)/Bi2Te3 Interface by Robert G. Moore; Qiangsheng Lu; Hoyeon Jeon; Xiong Yao; Tyler Smith; Yun‐Yi Pai; Michael Chilcote; Hu Miao; Satoshi Okamoto; An‐Ping Li; Seongshik Oh; Matthew Brahlek is a Engineering article available to read on EtoBox.
What is Monolayer Superconductivity and Tunable Topological Electronic Structure at the Fe(Te,Se)/Bi2Te3 Interface about?
The interface between 2D topological Dirac states and an s-wave superconductor is expected to support Majorana-bound states (MBS) that can be used for quantum computing applications. Realizing these novel states of matter and their applications requires control over superconductivity and spin-orbit coupling to achieve spin-momentum-locked topological interface states (TIS) which are simultaneously superconducting. While signatures of MBS have been observed in the magnetic vortex cores of bulk FeTe 0.55 Se 0.45 , inhomogeneity and disorder from doping make these signatures unclear and inconsistent between vortices. Here superconductivity is reported in monolayer (ML) FeTe 1-y Se y (Fe(Te,Se)) grown on Bi 2 Te 3 by molecular beam epitaxy (MBE). Spin and angle-resolved photoemission spectroscopy (SARPES) directly resolve the interfacial spin and electronic structure of Fe(Te,Se)/Bi 2 Te 3 heterostructures. For y = 0.25, the Fe(Te,Se) electronic structure is found to overlap with the Bi 2 Te 3 TIS and the desired spin-momentum locking is not observed. In contrast, for y = 0.1, reduced inhomogeneity measured by scanning tunneling microscopy (STM) and a smaller Fe(Te,Se) Fermi surface wi
Who reads Monolayer Superconductivity and Tunable Topological Electronic Structure at the Fe(Te,Se)/Bi2Te3 Interface?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Robert G. Moore; Qiangsheng Lu; Hoyeon Jeon; Xiong Yao; Tyler Smith; Yun‐Yi Pai; Michael Chilcote; Hu Miao; Satoshi Okamoto; An‐Ping Li; Seongshik Oh; Matthew Brahlek
- Publisher
- Wiley
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)