Fig. 4
From: Experimental realization of a non-magnetic one-way spin switch
Properties of unidirectional spin switch. a Spin polarization versus \(v_{\mathrm{b}}\) for positive (red filled circles) and negative (blue filled triangles) barrier velocities. Plotted data are mean ± s.d. for five experiments at each velocity. Hatched areas indicate velocity ranges where heating was experimentally observed. Numerical results for positive (red empty circles) and negative (blue empty triangles) barrier velocities are connected by dashed lines. b Transmission coefficient versus \(v_{\mathrm{b}}\). Solid lines are sigmoidal fits to data and the shaded regions indicate the area where the sigmoidal fit rises from 30% to 70%. The horizontal gray-dashed line indicates the inflection point of both fits at T = 0.53. GPE numerical simulations without interactions result in sharp transitions between total reflection and total transmission (instead of a crossover region). The crossover velocity for each transition in the noninteracting case is represented by a vertical-dashed line
