Robust two-dimensional surface superconductivity and vortex lattice in the Weyl semimetal $\gamma$-PtBi${}_2$

Jose Antonio Moreno, Pablo García Talavera, Pablo García Talavera +11

The layered compound $\gamma$-PtBi${}_2$ is a topological semimetal with Fermi arcs at the surface joining bulk Weyl points. Recent work has found signatures of surface superconductivity…