Electronic properties of two inequivalent surfaces in MoTe$_2$ studied by quasi-particle interference

MoTe$_2$ has received renewed interest due to its topological properties. At a temperature below 250 K, MoTe$_2$ is a type II Weyl semimetal hosting three-dimensional (3D) linearly dispersing states with well defined chirality. Nodes in this 3D dispersion are called Weyl points. Weyl points of opposite chirality are expected to be connected by topologically protected Fermi arcs. In this talk we discuss low temperature scanning tunneling microscopy studies of the electronic structure of MoTe$_2$. The electronic properties are studied using quasi-particle interference technique which allows us to resolve Fermi arcs features and to clearly distinguish between two inequivalent MoTe$_2$ surfaces. Our results provide important contributions to further our understanding of the electronic properties of this new and exotic class of materials.