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Electronic band gaps and transport properties in periodically alternating mono- and bi-layer graphene superlattices
We investigate the electronic band structure and transport properties of periodically alternating mono- and bi-layer graphene superlattices (MBLG SLs). In such MBLG SLs, there exists a zero-averaged wave vector (zero-) gap that is insensitive to the lattice constant. This zero- gap can be controlled by changing both the ratio of …