Spin-electric stripes: electric voltage generated by spin current

At the boundaries of the two-dimensional conductor, stripes arise with an electric field transverse to the flowing electric current, and with 100\% electron spin polarization perpendicular to the 2D plane. In these boundary stripes, the magnitudes of spin polarizations are the same, the magnitudes of transverse electric fields are the same, but the directions of electric fields and orientations of spins are opposite. If the spin relaxation is negligible, the magnitudes of the electric fields are directly related to the spin current. The stripes at boundaries are separated by a center-stripe, in which the magnitude and direction of the electric field depend on the ratio of the skew scattering and side jump spin currents. The spin polarization is zero on the centerline and reaches +1 or -1 at the boundaries between the central and periphery stripes if spin relaxation of the z-component of spin normal to the 2D plane is absent. Weak spin relaxation modifies the magnitudes of the spin polarization and electric fields, with +1 or -1 spin polarization persisting at the edges of the sample. Favorable experimental settings, in which electron or hole spin relaxation of the z-component of spin is suppressed but the spin current is not, are discussed.