Growth and low temperature STM study of Stanene
Abstract
Stanene and its derivatives can be 2D topological insulators (TI) with a very large band gap as proposed by first-principles calculations, or can support enhanced thermoelectric performance, topological superconductivity and the near-room-temperature quantum anomalous Hall (QAH) effect. Here, we report a successful fabrication of 2D stanene by MBE. The atomic and electronic structures determined by STM and ARPES agree well with the predictions by first-principles calculations. Bulk band gap and edge states are also observed. On stanene thicker than 2 layers, superconductivity is also observed, which suggests stanene is a good candidate for topological superconductor.
- Publication:
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APS March Meeting Abstracts
- Pub Date:
- 2019
- Bibcode:
- 2019APS..MARH05002J