Fig. 4From: Controllable Valley Polarization Using Silicene Double Line Defects Due to Rashba Spin-Orbit CouplingValley polarization a and \(T_{K}/T_{K^{\prime }}\) (b–d) as functions of Δz and tR. tR=7.2tso in (b–d), Ef=1.5tso in c and d, and the on-site energy is E=0.15t in the left electrode in d; all other parameters are identical to those in Fig. 2dBack to article page