Topological surface superconductivity in FeSe0.45Te0.55

Abstract

Topological superconductors are expected to play an important role in the development of quantum computing devices and iron-based superconductors represent an ideal platform to explore and engineer the underlying physics. Here, the authors investigate the origin of topological superconductivity in FeSe0.45Te0.55 arising from the interplay of the superconducting gap, magnetism, and a Rashba spin–orbit interaction, and its effects on the superconductor’s properties.