Dc conductance of ordered and disordered silicene superlattices

• We drive analytically the transmission probability for SSL.
• There are resonance picks (RP) in transmission probability.
• The number of RP increases with increasing the number of SSL barriers.
• The oscillating conductance suppresses with imposing disorder in SSL.
• Dc conductance of the system depends on structural parameters.

This paper studies the conductance of charge carriers through silicene-based superlattices consisting of monolayer silicene by means of transfer matrix method. At first, we consider the ordered superlattices and drive analytically the transmission probability of Dirac fermions. We show that the number of resonance picks increases with increasing the number of superlattice barriers. In order to the best understand of the appearance of the picks, we exactly studied transmission properties of the silicene superlattice. Also, the effect of disorder on the probability of transmission through the system of various sizes is studied. The short-range correlated disorder is applied on the thickness of electron doped silicene strips as quantum barriers which fluctuates around their mean values. We show that the oscillating conductance as a function of barriers hight suppresses with imposing the disorder in the silicene superlattice. Also, the effect of structural parameters on the conductance of the system is studied.