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This paper discusses the topological and transport properties of binaryheterostructures of different topological materials. The creation of multilayerdevices is an alternative to building synthetic topological materials. Byadjusting the pattern of layers, we control the global topological propertiesthat favor tunneling and optimize the conductance of the edge state. Using aone-dimensional model and the method of Green's functions, we characterize eachlayer's edge states and make the chains couplings to generate theheterostructure. To study the bulk properties, we calculate the topologicalinvariant from the Zak phase to build phase diagrams, and we obtain ananalytical result for the separation line between different phases that dependson the hopping parameters of the heterostructure. We calculate the differentialconductance with the non-equilibrium Green function technique showing thetunneling of the edge states and discussing its possible design andexperimental application.

Transversal transport and topological properties of binary heterostructures of topological insulators