Effect of SW defect on structural and transport properties of silicene nanoribbons
arXiv:1601.01053 · doi:10.1142/S0217979215500617
Abstract
Using density functional theory and non-equilibrium Greens function technique, we performed theoretical investigations on the structural and transport properties of zigzag silicene nanoribbons with Stone-Wales defect. The calculated formation energy is significantly lower than that of graphene and silicene, which implies the high stability of such defect in SiNRs. Negative differential resistance can be observed within certain bias voltage range in both perfect and SW defected SiNRs. In order to elucidate the mechanism the NDR behavior,the transmission spectra and molecular projected self-consistent Hamiltonian states are discussed in details.
arXiv comment16 pages, 4 figures,1 table
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