title: Impact of point defects on the electronic and transport properties of silicene nanoribbons.
abstract: We study the impact of various point defects on the structural, electronic and ballistic transport properties of armchair silicene nanoribbons, using the density functional theory and the non equilibrium Green's function method. The effect of a Stone-Wales defect, an interior/edge vacancy and an edge dangling bond is examined. Our results show that structural imperfections can alter the electronic structure (energy band structure and density of states) of the nanoribbons and can either increase or decrease the ballistic current. The dependence of the transport properties on the position of the defects (sublattice A or B) and on their distance from the contact is also investigated.
authors.affiliation: Department of Physics and Astronomy, University of Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium.
authors.forename: K
authors.initials: K
authors.lastname: Iordanidou
authors.forename: M
authors.initials: M
authors.lastname: Houssa
authors.forename: B
authors.initials: B
authors.lastname: van den Broek
authors.forename: G
authors.initials: G
authors.lastname: Pourtois
authors.forename: V V
authors.initials: VV
authors.lastname: Afanas'ev
authors.forename: A
authors.initials: A
authors.lastname: Stesmans