Evolution of multi-gap superconductivity in the atomically thin limit: Strain-enhanced three-gap superconductivity in monolayer MgB${}_2$

J. Bekaert, A. Aperis, B. Partoens +2

Starting from first principles, we show the formation and evolution of superconducting gaps in MgB${}_2$ at its ultrathin limit. Atomically thin MgB${}_2$ is distinctly different from…