Figure 5
From: Electrically controlled spin polarized current in Dirac semimetals
(a) The spectrum of DSM with Zeeman terms \(B_\Delta =0.2k_{cz}^2\) and \(B_0=0.2t\) in open boundary condition along x-direction with \(L_x=100\) , \(k_y=0\) and \(\mu _D=-0.2t\). (b) The spin polarization via the length of the junction with various coupling strengths. (c,d) The momentum-resolved transmission coefficient \(T_{\uparrow }\) (\(T_{\downarrow }\)) in a junction with length \(L_x = 10a\) (30a) with the coupling strength \(t_c=0.25t\). We choose \(U=0.3t\) and other parameters are the same as those in Fig. 4b.
