Spin filtering for various geometries of inhomogeneous magnetic field*

Based upon a hybrid superconductor/semiconductor structure consisting of two-dimensional electron gas and a surface superconducting mask on top, we investigate the properties of the spin-dependent ballistic transport, theoretically. Landau approach is adopted for the calculation of spin transport properties for various geometries of inhomogeneous magnetic field. In this study, we mainly concentrate on the difference in their efficiency of spin filtering with spin-orbit interaction known as the Rashba effect considered.