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In this paper, we discuss the topological and transport properties of binaryheterostructures of different topological materials. Using theSu-Schrieffer-Heeger model and the method of Green's functions, we calculateand characterize the edge states of these heterostructures. We study thetopological phase through an invariant calculated from the Zak phase in orderto build phase diagrams. We obtained an analytical result that allows us tofind the topological phase diagram for a one-dimensional general chain and forheterostructures from the cross band condition. We also calculate thedifferential conductance with the non-equilibrium Green function techniqueshowing the tunneling of the edge states and discussing its possible design andexperimental application.

Edge states, transport and topological properties of heterostructures in the SSH model